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Finding the Fourth Proportional to 71,372.10, 107,058.15 and 44,991.30

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Solution

The fourth proportional to 71,372.10, 107,058.15 and 44,991.30 is: 67,486.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,372.10 : 107,058.15 = 44,991.30 : x
  2. Step 2: Convert to fraction form
    71,372.10/107,058.15 = 44,991.30/x
  3. Step 3: Cross multiply
    71,372.10x = 107,058.15 × 44,991.30
  4. Step 4: Simplify right side
    71,372.10x = 4,816,685,344.10
  5. Step 5: Solve for x
    x = 4,816,685,344.10/71,372.10
  6. Step 6: Final answer
    x = 67,486.95

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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.