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Finding the Fourth Proportional to 63,639.66, 87,787.35 and 59,134.44

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Solution

The fourth proportional to 63,639.66, 87,787.35 and 59,134.44 is: 81,572.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,639.66 : 87,787.35 = 59,134.44 : x
  2. Step 2: Convert to fraction form
    63,639.66/87,787.35 = 59,134.44/x
  3. Step 3: Cross multiply
    63,639.66x = 87,787.35 × 59,134.44
  4. Step 4: Simplify right side
    63,639.66x = 5,191,255,781.33
  5. Step 5: Solve for x
    x = 5,191,255,781.33/63,639.66
  6. Step 6: Final answer
    x = 81,572.65

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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.