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Finding the Fourth Proportional to 140,340.92, 193,622.80 and 79,897.12

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Solution

The fourth proportional to 140,340.92, 193,622.80 and 79,897.12 is: 110,230.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,340.92 : 193,622.80 = 79,897.12 : x
  2. Step 2: Convert to fraction form
    140,340.92/193,622.80 = 79,897.12/x
  3. Step 3: Cross multiply
    140,340.92x = 193,622.80 × 79,897.12
  4. Step 4: Simplify right side
    140,340.92x = 15,469,904,086.34
  5. Step 5: Solve for x
    x = 15,469,904,086.34/140,340.92
  6. Step 6: Final answer
    x = 110,230.89

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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.