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Finding the Fourth Proportional to 115,394.52, 159,244.56 and 63,711.72

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Solution

The fourth proportional to 115,394.52, 159,244.56 and 63,711.72 is: 87,922.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,394.52 : 159,244.56 = 63,711.72 : x
  2. Step 2: Convert to fraction form
    115,394.52/159,244.56 = 63,711.72/x
  3. Step 3: Cross multiply
    115,394.52x = 159,244.56 × 63,711.72
  4. Step 4: Simplify right side
    115,394.52x = 10,145,744,818.24
  5. Step 5: Solve for x
    x = 10,145,744,818.24/115,394.52
  6. Step 6: Final answer
    x = 87,922.24

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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.