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Finding the Fourth Proportional to 109,231.92, 150,710.55 and 63,921.13

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Solution

The fourth proportional to 109,231.92, 150,710.55 and 63,921.13 is: 88,193.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,231.92 : 150,710.55 = 63,921.13 : x
  2. Step 2: Convert to fraction form
    109,231.92/150,710.55 = 63,921.13/x
  3. Step 3: Cross multiply
    109,231.92x = 150,710.55 × 63,921.13
  4. Step 4: Simplify right side
    109,231.92x = 9,633,588,658.92
  5. Step 5: Solve for x
    x = 9,633,588,658.92/109,231.92
  6. Step 6: Final answer
    x = 88,193.90

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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.