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Finding the Fourth Proportional to 86,532.92, 119,414.22 and 48,819.32

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Solution

The fourth proportional to 86,532.92, 119,414.22 and 48,819.32 is: 67,369.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,532.92 : 119,414.22 = 48,819.32 : x
  2. Step 2: Convert to fraction form
    86,532.92/119,414.22 = 48,819.32/x
  3. Step 3: Cross multiply
    86,532.92x = 119,414.22 × 48,819.32
  4. Step 4: Simplify right side
    86,532.92x = 5,829,721,018.73
  5. Step 5: Solve for x
    x = 5,829,721,018.73/86,532.92
  6. Step 6: Final answer
    x = 67,369.98

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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.