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Finding the Fourth Proportional to 71,327.70, 106,991.55 and 43,334.10

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Solution

The fourth proportional to 71,327.70, 106,991.55 and 43,334.10 is: 65,001.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,327.70 : 106,991.55 = 43,334.10 : x
  2. Step 2: Convert to fraction form
    71,327.70/106,991.55 = 43,334.10/x
  3. Step 3: Cross multiply
    71,327.70x = 106,991.55 × 43,334.10
  4. Step 4: Simplify right side
    71,327.70x = 4,636,382,526.86
  5. Step 5: Solve for x
    x = 4,636,382,526.86/71,327.70
  6. Step 6: Final answer
    x = 65,001.15

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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.