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Finding the Fourth Proportional to 71,203.60, 106,690.20 and 44,861.20

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Solution

The fourth proportional to 71,203.60, 106,690.20 and 44,861.20 is: 67,219.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,203.60 : 106,690.20 = 44,861.20 : x
  2. Step 2: Convert to fraction form
    71,203.60/106,690.20 = 44,861.20/x
  3. Step 3: Cross multiply
    71,203.60x = 106,690.20 × 44,861.20
  4. Step 4: Simplify right side
    71,203.60x = 4,786,250,400.24
  5. Step 5: Solve for x
    x = 4,786,250,400.24/71,203.60
  6. Step 6: Final answer
    x = 67,219.22

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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.