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Finding the Fourth Proportional to 95,555.76, 131,871.42 and 53,115

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Solution

The fourth proportional to 95,555.76, 131,871.42 and 53,115 is: 73,301.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,555.76 : 131,871.42 = 53,115 : x
  2. Step 2: Convert to fraction form
    95,555.76/131,871.42 = 53,115/x
  3. Step 3: Cross multiply
    95,555.76x = 131,871.42 × 53,115
  4. Step 4: Simplify right side
    95,555.76x = 7,004,350,473.30
  5. Step 5: Solve for x
    x = 7,004,350,473.30/95,555.76
  6. Step 6: Final answer
    x = 73,301.19

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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.