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Finding the Fourth Proportional to 109,713.76, 151,404.11 and 59,412.76

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Solution

The fourth proportional to 109,713.76, 151,404.11 and 59,412.76 is: 81,989.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,713.76 : 151,404.11 = 59,412.76 : x
  2. Step 2: Convert to fraction form
    109,713.76/151,404.11 = 59,412.76/x
  3. Step 3: Cross multiply
    109,713.76x = 151,404.11 × 59,412.76
  4. Step 4: Simplify right side
    109,713.76x = 8,995,336,050.44
  5. Step 5: Solve for x
    x = 8,995,336,050.44/109,713.76
  6. Step 6: Final answer
    x = 81,989.13

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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.