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Finding the Fourth Proportional to 69,361.93, 95,719.78 and 39,148.52

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Solution

The fourth proportional to 69,361.93, 95,719.78 and 39,148.52 is: 54,025.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,361.93 : 95,719.78 = 39,148.52 : x
  2. Step 2: Convert to fraction form
    69,361.93/95,719.78 = 39,148.52/x
  3. Step 3: Cross multiply
    69,361.93x = 95,719.78 × 39,148.52
  4. Step 4: Simplify right side
    69,361.93x = 3,747,287,721.73
  5. Step 5: Solve for x
    x = 3,747,287,721.73/69,361.93
  6. Step 6: Final answer
    x = 54,025.14

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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.