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Finding the Fourth Proportional to 69,992.20, 105,481.13 and 63,337.66

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Solution

The fourth proportional to 69,992.20, 105,481.13 and 63,337.66 is: 95,452.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,992.20 : 105,481.13 = 63,337.66 : x
  2. Step 2: Convert to fraction form
    69,992.20/105,481.13 = 63,337.66/x
  3. Step 3: Cross multiply
    69,992.20x = 105,481.13 × 63,337.66
  4. Step 4: Simplify right side
    69,992.20x = 6,680,927,948.36
  5. Step 5: Solve for x
    x = 6,680,927,948.36/69,992.20
  6. Step 6: Final answer
    x = 95,452.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.