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Finding the Fourth Proportional to 69,361.43, 95,719.09 and 39,148.02

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Solution

The fourth proportional to 69,361.43, 95,719.09 and 39,148.02 is: 54,024.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,361.43 : 95,719.09 = 39,148.02 : x
  2. Step 2: Convert to fraction form
    69,361.43/95,719.09 = 39,148.02/x
  3. Step 3: Cross multiply
    69,361.43x = 95,719.09 × 39,148.02
  4. Step 4: Simplify right side
    69,361.43x = 3,747,212,751.83
  5. Step 5: Solve for x
    x = 3,747,212,751.83/69,361.43
  6. Step 6: Final answer
    x = 54,024.45

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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.