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Finding the Fourth Proportional to 72,246.92, 99,479.22 and 63,244.04

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Solution

The fourth proportional to 72,246.92, 99,479.22 and 63,244.04 is: 87,082.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,246.92 : 99,479.22 = 63,244.04 : x
  2. Step 2: Convert to fraction form
    72,246.92/99,479.22 = 63,244.04/x
  3. Step 3: Cross multiply
    72,246.92x = 99,479.22 × 63,244.04
  4. Step 4: Simplify right side
    72,246.92x = 6,291,467,768.85
  5. Step 5: Solve for x
    x = 6,291,467,768.85/72,246.92
  6. Step 6: Final answer
    x = 87,082.85

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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.