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Finding the Fourth Proportional to 83,481.99, 115,219.95 and 63,304.86

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Solution

The fourth proportional to 83,481.99, 115,219.95 and 63,304.86 is: 87,371.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,481.99 : 115,219.95 = 63,304.86 : x
  2. Step 2: Convert to fraction form
    83,481.99/115,219.95 = 63,304.86/x
  3. Step 3: Cross multiply
    83,481.99x = 115,219.95 × 63,304.86
  4. Step 4: Simplify right side
    83,481.99x = 7,293,982,803.96
  5. Step 5: Solve for x
    x = 7,293,982,803.96/83,481.99
  6. Step 6: Final answer
    x = 87,371.93

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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.