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Finding the Fourth Proportional to 91,796.92, 126,689.46 and 51,521.56

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Solution

The fourth proportional to 91,796.92, 126,689.46 and 51,521.56 is: 71,105.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,796.92 : 126,689.46 = 51,521.56 : x
  2. Step 2: Convert to fraction form
    91,796.92/126,689.46 = 51,521.56/x
  3. Step 3: Cross multiply
    91,796.92x = 126,689.46 × 51,521.56
  4. Step 4: Simplify right side
    91,796.92x = 6,527,238,614.76
  5. Step 5: Solve for x
    x = 6,527,238,614.76/91,796.92
  6. Step 6: Final answer
    x = 71,105.20

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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.