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Finding the Fourth Proportional to 91,611.08, 137,414.88 and 29,281.56

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Solution

The fourth proportional to 91,611.08, 137,414.88 and 29,281.56 is: 43,921.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,611.08 : 137,414.88 = 29,281.56 : x
  2. Step 2: Convert to fraction form
    91,611.08/137,414.88 = 29,281.56/x
  3. Step 3: Cross multiply
    91,611.08x = 137,414.88 × 29,281.56
  4. Step 4: Simplify right side
    91,611.08x = 4,023,722,053.61
  5. Step 5: Solve for x
    x = 4,023,722,053.61/91,611.08
  6. Step 6: Final answer
    x = 43,921.78

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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.