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Finding the Fourth Proportional to 87,694.72, 120,853.38 and 63,454.66

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Solution

The fourth proportional to 87,694.72, 120,853.38 and 63,454.66 is: 87,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,694.72 : 120,853.38 = 63,454.66 : x
  2. Step 2: Convert to fraction form
    87,694.72/120,853.38 = 63,454.66/x
  3. Step 3: Cross multiply
    87,694.72x = 120,853.38 × 63,454.66
  4. Step 4: Simplify right side
    87,694.72x = 7,668,710,137.75
  5. Step 5: Solve for x
    x = 7,668,710,137.75/87,694.72
  6. Step 6: Final answer
    x = 87,447.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.