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Finding the Fourth Proportional to 123,951.60, 173,998.80 and 123,951.60

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Solution

The fourth proportional to 123,951.60, 173,998.80 and 123,951.60 is: 173,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,951.60 : 173,998.80 = 123,951.60 : x
  2. Step 2: Convert to fraction form
    123,951.60/173,998.80 = 123,951.60/x
  3. Step 3: Cross multiply
    123,951.60x = 173,998.80 × 123,951.60
  4. Step 4: Simplify right side
    123,951.60x = 21,567,429,658.08
  5. Step 5: Solve for x
    x = 21,567,429,658.08/123,951.60
  6. Step 6: Final answer
    x = 173,998.80

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.