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Finding the Fourth Proportional to 71,066.43, 106,578.27 and 58,555.44

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Solution

The fourth proportional to 71,066.43, 106,578.27 and 58,555.44 is: 87,815.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,066.43 : 106,578.27 = 58,555.44 : x
  2. Step 2: Convert to fraction form
    71,066.43/106,578.27 = 58,555.44/x
  3. Step 3: Cross multiply
    71,066.43x = 106,578.27 × 58,555.44
  4. Step 4: Simplify right side
    71,066.43x = 6,240,737,494.29
  5. Step 5: Solve for x
    x = 6,240,737,494.29/71,066.43
  6. Step 6: Final answer
    x = 87,815.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.