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Finding the Fourth Proportional to 71,082.92, 98,133.83 and 48,455.15

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Solution

The fourth proportional to 71,082.92, 98,133.83 and 48,455.15 is: 66,894.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,082.92 : 98,133.83 = 48,455.15 : x
  2. Step 2: Convert to fraction form
    71,082.92/98,133.83 = 48,455.15/x
  3. Step 3: Cross multiply
    71,082.92x = 98,133.83 × 48,455.15
  4. Step 4: Simplify right side
    71,082.92x = 4,755,089,819.20
  5. Step 5: Solve for x
    x = 4,755,089,819.20/71,082.92
  6. Step 6: Final answer
    x = 66,894.97

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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.