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Finding the Fourth Proportional to 71,372.60, 107,058.90 and 44,991.80

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Solution

The fourth proportional to 71,372.60, 107,058.90 and 44,991.80 is: 67,487.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,372.60 : 107,058.90 = 44,991.80 : x
  2. Step 2: Convert to fraction form
    71,372.60/107,058.90 = 44,991.80/x
  3. Step 3: Cross multiply
    71,372.60x = 107,058.90 × 44,991.80
  4. Step 4: Simplify right side
    71,372.60x = 4,816,772,617.02
  5. Step 5: Solve for x
    x = 4,816,772,617.02/71,372.60
  6. Step 6: Final answer
    x = 67,487.70

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1.5x scale

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.