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Finding the Fourth Proportional to 86,458.32, 119,234.86 and 73,757.32

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Solution

The fourth proportional to 86,458.32, 119,234.86 and 73,757.32 is: 101,718.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,458.32 : 119,234.86 = 73,757.32 : x
  2. Step 2: Convert to fraction form
    86,458.32/119,234.86 = 73,757.32/x
  3. Step 3: Cross multiply
    86,458.32x = 119,234.86 × 73,757.32
  4. Step 4: Simplify right side
    86,458.32x = 8,794,443,724.18
  5. Step 5: Solve for x
    x = 8,794,443,724.18/86,458.32
  6. Step 6: Final answer
    x = 101,718.88

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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.