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Finding the Fourth Proportional to 71,809.78, 107,554.27 and 52,042.95

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Solution

The fourth proportional to 71,809.78, 107,554.27 and 52,042.95 is: 77,948.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,809.78 : 107,554.27 = 52,042.95 : x
  2. Step 2: Convert to fraction form
    71,809.78/107,554.27 = 52,042.95/x
  3. Step 3: Cross multiply
    71,809.78x = 107,554.27 × 52,042.95
  4. Step 4: Simplify right side
    71,809.78x = 5,597,441,495.90
  5. Step 5: Solve for x
    x = 5,597,441,495.90/71,809.78
  6. Step 6: Final answer
    x = 77,948.18

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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.