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Finding the Fourth Proportional to 87,605.76, 130,928.66 and 63,963.15

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Solution

The fourth proportional to 87,605.76, 130,928.66 and 63,963.15 is: 95,594.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,605.76 : 130,928.66 = 63,963.15 : x
  2. Step 2: Convert to fraction form
    87,605.76/130,928.66 = 63,963.15/x
  3. Step 3: Cross multiply
    87,605.76x = 130,928.66 × 63,963.15
  4. Step 4: Simplify right side
    87,605.76x = 8,374,609,518.88
  5. Step 5: Solve for x
    x = 8,374,609,518.88/87,605.76
  6. Step 6: Final answer
    x = 95,594.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.