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Finding the Fourth Proportional to 71,711.43, 107,566.98 and 34,157.61

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Solution

The fourth proportional to 71,711.43, 107,566.98 and 34,157.61 is: 51,236.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,711.43 : 107,566.98 = 34,157.61 : x
  2. Step 2: Convert to fraction form
    71,711.43/107,566.98 = 34,157.61/x
  3. Step 3: Cross multiply
    71,711.43x = 107,566.98 × 34,157.61
  4. Step 4: Simplify right side
    71,711.43x = 3,674,230,951.72
  5. Step 5: Solve for x
    x = 3,674,230,951.72/71,711.43
  6. Step 6: Final answer
    x = 51,236.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.