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Finding the Fourth Proportional to 71,363.80, 106,943.30 and 52,496.60

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Solution

The fourth proportional to 71,363.80, 106,943.30 and 52,496.60 is: 78,669.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,363.80 : 106,943.30 = 52,496.60 : x
  2. Step 2: Convert to fraction form
    71,363.80/106,943.30 = 52,496.60/x
  3. Step 3: Cross multiply
    71,363.80x = 106,943.30 × 52,496.60
  4. Step 4: Simplify right side
    71,363.80x = 5,614,159,642.78
  5. Step 5: Solve for x
    x = 5,614,159,642.78/71,363.80
  6. Step 6: Final answer
    x = 78,669.57

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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.