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Finding the Fourth Proportional to 69,239.97, 103,818.43 and 31,753.08

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Solution

The fourth proportional to 69,239.97, 103,818.43 and 31,753.08 is: 47,610.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,239.97 : 103,818.43 = 31,753.08 : x
  2. Step 2: Convert to fraction form
    69,239.97/103,818.43 = 31,753.08/x
  3. Step 3: Cross multiply
    69,239.97x = 103,818.43 × 31,753.08
  4. Step 4: Simplify right side
    69,239.97x = 3,296,554,913.26
  5. Step 5: Solve for x
    x = 3,296,554,913.26/69,239.97
  6. Step 6: Final answer
    x = 47,610.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.