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Finding the Fourth Proportional to 123,415.60, 185,123.40 and 110,293.60

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Solution

The fourth proportional to 123,415.60, 185,123.40 and 110,293.60 is: 165,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,415.60 : 185,123.40 = 110,293.60 : x
  2. Step 2: Convert to fraction form
    123,415.60/185,123.40 = 110,293.60/x
  3. Step 3: Cross multiply
    123,415.60x = 185,123.40 × 110,293.60
  4. Step 4: Simplify right side
    123,415.60x = 20,417,926,230.24
  5. Step 5: Solve for x
    x = 20,417,926,230.24/123,415.60
  6. Step 6: Final answer
    x = 165,440.40

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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.