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Finding the Fourth Proportional to 111,116.92, 153,337.44 and 63,385.52

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Solution

The fourth proportional to 111,116.92, 153,337.44 and 63,385.52 is: 87,469.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,116.92 : 153,337.44 = 63,385.52 : x
  2. Step 2: Convert to fraction form
    111,116.92/153,337.44 = 63,385.52/x
  3. Step 3: Cross multiply
    111,116.92x = 153,337.44 × 63,385.52
  4. Step 4: Simplify right side
    111,116.92x = 9,719,373,369.87
  5. Step 5: Solve for x
    x = 9,719,373,369.87/111,116.92
  6. Step 6: Final answer
    x = 87,469.79

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1.5x scale

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.