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Finding the Fourth Proportional to 87,585.80, 130,898.80 and 63,943.16

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Solution

The fourth proportional to 87,585.80, 130,898.80 and 63,943.16 is: 95,564.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,585.80 : 130,898.80 = 63,943.16 : x
  2. Step 2: Convert to fraction form
    87,585.80/130,898.80 = 63,943.16/x
  3. Step 3: Cross multiply
    87,585.80x = 130,898.80 × 63,943.16
  4. Step 4: Simplify right side
    87,585.80x = 8,370,082,912.21
  5. Step 5: Solve for x
    x = 8,370,082,912.21/87,585.80
  6. Step 6: Final answer
    x = 95,564.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.