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Finding the Fourth Proportional to 84,244.59, 126,304.52 and 39,819.47

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Solution

The fourth proportional to 84,244.59, 126,304.52 and 39,819.47 is: 59,699.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,244.59 : 126,304.52 = 39,819.47 : x
  2. Step 2: Convert to fraction form
    84,244.59/126,304.52 = 39,819.47/x
  3. Step 3: Cross multiply
    84,244.59x = 126,304.52 × 39,819.47
  4. Step 4: Simplify right side
    84,244.59x = 5,029,378,214.38
  5. Step 5: Solve for x
    x = 5,029,378,214.38/84,244.59
  6. Step 6: Final answer
    x = 59,699.72

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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.