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Finding the Fourth Proportional to 502,686.51, 754,023.18 and 123,610.53

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Solution

The fourth proportional to 502,686.51, 754,023.18 and 123,610.53 is: 185,414.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,686.51 : 754,023.18 = 123,610.53 : x
  2. Step 2: Convert to fraction form
    502,686.51/754,023.18 = 123,610.53/x
  3. Step 3: Cross multiply
    502,686.51x = 754,023.18 × 123,610.53
  4. Step 4: Simplify right side
    502,686.51x = 93,205,204,912.09
  5. Step 5: Solve for x
    x = 93,205,204,912.09/502,686.51
  6. Step 6: Final answer
    x = 185,414.18

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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.