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Finding the Fourth Proportional to 69,114.56, 95,424 and 53,170.88

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Solution

The fourth proportional to 69,114.56, 95,424 and 53,170.88 is: 73,411.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,114.56 : 95,424 = 53,170.88 : x
  2. Step 2: Convert to fraction form
    69,114.56/95,424 = 53,170.88/x
  3. Step 3: Cross multiply
    69,114.56x = 95,424 × 53,170.88
  4. Step 4: Simplify right side
    69,114.56x = 5,073,778,053.12
  5. Step 5: Solve for x
    x = 5,073,778,053.12/69,114.56
  6. Step 6: Final answer
    x = 73,411.13

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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.