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Finding the Fourth Proportional to 87,057.68, 130,623.42 and 47,568.66

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Solution

The fourth proportional to 87,057.68, 130,623.42 and 47,568.66 is: 71,373.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,057.68 : 130,623.42 = 47,568.66 : x
  2. Step 2: Convert to fraction form
    87,057.68/130,623.42 = 47,568.66/x
  3. Step 3: Cross multiply
    87,057.68x = 130,623.42 × 47,568.66
  4. Step 4: Simplify right side
    87,057.68x = 6,213,581,261.65
  5. Step 5: Solve for x
    x = 6,213,581,261.65/87,057.68
  6. Step 6: Final answer
    x = 71,373.15

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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.