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Finding the Fourth Proportional to 95,957.56, 132,445.16 and 65,381.20

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Solution

The fourth proportional to 95,957.56, 132,445.16 and 65,381.20 is: 90,242.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,957.56 : 132,445.16 = 65,381.20 : x
  2. Step 2: Convert to fraction form
    95,957.56/132,445.16 = 65,381.20/x
  3. Step 3: Cross multiply
    95,957.56x = 132,445.16 × 65,381.20
  4. Step 4: Simplify right side
    95,957.56x = 8,659,423,494.99
  5. Step 5: Solve for x
    x = 8,659,423,494.99/95,957.56
  6. Step 6: Final answer
    x = 90,242.22

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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.