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Finding the Fourth Proportional to 71,932.31, 99,264.62 and 41,715.70

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Solution

The fourth proportional to 71,932.31, 99,264.62 and 41,715.70 is: 57,566.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,932.31 : 99,264.62 = 41,715.70 : x
  2. Step 2: Convert to fraction form
    71,932.31/99,264.62 = 41,715.70/x
  3. Step 3: Cross multiply
    71,932.31x = 99,264.62 × 41,715.70
  4. Step 4: Simplify right side
    71,932.31x = 4,140,893,108.53
  5. Step 5: Solve for x
    x = 4,140,893,108.53/71,932.31
  6. Step 6: Final answer
    x = 57,566.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.