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Finding the Fourth Proportional to 71,354.52, 107,046.82 and 26,980.29

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Solution

The fourth proportional to 71,354.52, 107,046.82 and 26,980.29 is: 40,476.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,354.52 : 107,046.82 = 26,980.29 : x
  2. Step 2: Convert to fraction form
    71,354.52/107,046.82 = 26,980.29/x
  3. Step 3: Cross multiply
    71,354.52x = 107,046.82 × 26,980.29
  4. Step 4: Simplify right side
    71,354.52x = 2,888,154,129.14
  5. Step 5: Solve for x
    x = 2,888,154,129.14/71,354.52
  6. Step 6: Final answer
    x = 40,476.12

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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.