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Finding the Fourth Proportional to 502,687.51, 754,024.68 and 123,611.53

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Solution

The fourth proportional to 502,687.51, 754,024.68 and 123,611.53 is: 185,415.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,687.51 : 754,024.68 = 123,611.53 : x
  2. Step 2: Convert to fraction form
    502,687.51/754,024.68 = 123,611.53/x
  3. Step 3: Cross multiply
    502,687.51x = 754,024.68 × 123,611.53
  4. Step 4: Simplify right side
    502,687.51x = 93,206,144,352.56
  5. Step 5: Solve for x
    x = 93,206,144,352.56/502,687.51
  6. Step 6: Final answer
    x = 185,415.68

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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.