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Finding the Fourth Proportional to 69,959.41, 96,539.36 and 39,337.20

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Solution

The fourth proportional to 69,959.41, 96,539.36 and 39,337.20 is: 54,282.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,959.41 : 96,539.36 = 39,337.20 : x
  2. Step 2: Convert to fraction form
    69,959.41/96,539.36 = 39,337.20/x
  3. Step 3: Cross multiply
    69,959.41x = 96,539.36 × 39,337.20
  4. Step 4: Simplify right side
    69,959.41x = 3,797,587,915.51
  5. Step 5: Solve for x
    x = 3,797,587,915.51/69,959.41
  6. Step 6: Final answer
    x = 54,282.73

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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.