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Finding the Fourth Proportional to 123,983.60, 185,683.80 and 123,983.60

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Solution

The fourth proportional to 123,983.60, 185,683.80 and 123,983.60 is: 185,683.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,983.60 : 185,683.80 = 123,983.60 : x
  2. Step 2: Convert to fraction form
    123,983.60/185,683.80 = 123,983.60/x
  3. Step 3: Cross multiply
    123,983.60x = 185,683.80 × 123,983.60
  4. Step 4: Simplify right side
    123,983.60x = 23,021,745,985.68
  5. Step 5: Solve for x
    x = 23,021,745,985.68/123,983.60
  6. Step 6: Final answer
    x = 185,683.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.