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Finding the Fourth Proportional to 111,423.52, 153,793.20 and 68,957.92

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Solution

The fourth proportional to 111,423.52, 153,793.20 and 68,957.92 is: 95,179.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,423.52 : 153,793.20 = 68,957.92 : x
  2. Step 2: Convert to fraction form
    111,423.52/153,793.20 = 68,957.92/x
  3. Step 3: Cross multiply
    111,423.52x = 153,793.20 × 68,957.92
  4. Step 4: Simplify right side
    111,423.52x = 10,605,259,182.14
  5. Step 5: Solve for x
    x = 10,605,259,182.14/111,423.52
  6. Step 6: Final answer
    x = 95,179.72

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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.