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Finding the Fourth Proportional to 71,544.53, 98,735.93 and 39,713.96

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Solution

The fourth proportional to 71,544.53, 98,735.93 and 39,713.96 is: 54,807.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,544.53 : 98,735.93 = 39,713.96 : x
  2. Step 2: Convert to fraction form
    71,544.53/98,735.93 = 39,713.96/x
  3. Step 3: Cross multiply
    71,544.53x = 98,735.93 × 39,713.96
  4. Step 4: Simplify right side
    71,544.53x = 3,921,194,576.01
  5. Step 5: Solve for x
    x = 3,921,194,576.01/71,544.53
  6. Step 6: Final answer
    x = 54,807.75

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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.