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Finding the Fourth Proportional to 71,057.80, 106,586.70 and 44,619.40

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Solution

The fourth proportional to 71,057.80, 106,586.70 and 44,619.40 is: 66,929.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,057.80 : 106,586.70 = 44,619.40 : x
  2. Step 2: Convert to fraction form
    71,057.80/106,586.70 = 44,619.40/x
  3. Step 3: Cross multiply
    71,057.80x = 106,586.70 × 44,619.40
  4. Step 4: Simplify right side
    71,057.80x = 4,755,834,601.98
  5. Step 5: Solve for x
    x = 4,755,834,601.98/71,057.80
  6. Step 6: Final answer
    x = 66,929.10

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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.