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Finding the Fourth Proportional to 71,483.52, 98,658.56 and 43,193.28

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Solution

The fourth proportional to 71,483.52, 98,658.56 and 43,193.28 is: 59,613.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,483.52 : 98,658.56 = 43,193.28 : x
  2. Step 2: Convert to fraction form
    71,483.52/98,658.56 = 43,193.28/x
  3. Step 3: Cross multiply
    71,483.52x = 98,658.56 × 43,193.28
  4. Step 4: Simplify right side
    71,483.52x = 4,261,386,806.48
  5. Step 5: Solve for x
    x = 4,261,386,806.48/71,483.52
  6. Step 6: Final answer
    x = 59,613.56

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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.