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Finding the Fourth Proportional to 502,431.78, 753,732.18 and 165,569.52

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Solution

The fourth proportional to 502,431.78, 753,732.18 and 165,569.52 is: 248,382.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,431.78 : 753,732.18 = 165,569.52 : x
  2. Step 2: Convert to fraction form
    502,431.78/753,732.18 = 165,569.52/x
  3. Step 3: Cross multiply
    502,431.78x = 753,732.18 × 165,569.52
  4. Step 4: Simplify right side
    502,431.78x = 124,795,075,251.15
  5. Step 5: Solve for x
    x = 124,795,075,251.15/502,431.78
  6. Step 6: Final answer
    x = 248,382.13

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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.