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Finding the Fourth Proportional to 63,640.66, 87,788.73 and 59,135.44

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Solution

The fourth proportional to 63,640.66, 87,788.73 and 59,135.44 is: 81,574.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,640.66 : 87,788.73 = 59,135.44 : x
  2. Step 2: Convert to fraction form
    63,640.66/87,788.73 = 59,135.44/x
  3. Step 3: Cross multiply
    63,640.66x = 87,788.73 × 59,135.44
  4. Step 4: Simplify right side
    63,640.66x = 5,191,425,175.59
  5. Step 5: Solve for x
    x = 5,191,425,175.59/63,640.66
  6. Step 6: Final answer
    x = 81,574.03

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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.