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Finding the Fourth Proportional to 115,437.66, 159,306.46 and 63,754.60

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Solution

The fourth proportional to 115,437.66, 159,306.46 and 63,754.60 is: 87,982.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,437.66 : 159,306.46 = 63,754.60 : x
  2. Step 2: Convert to fraction form
    115,437.66/159,306.46 = 63,754.60/x
  3. Step 3: Cross multiply
    115,437.66x = 159,306.46 × 63,754.60
  4. Step 4: Simplify right side
    115,437.66x = 10,156,519,634.72
  5. Step 5: Solve for x
    x = 10,156,519,634.72/115,437.66
  6. Step 6: Final answer
    x = 87,982.72

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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.