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Finding the Fourth Proportional to 71,550.45, 107,343.80 and 50,531.55

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Solution

The fourth proportional to 71,550.45, 107,343.80 and 50,531.55 is: 75,810.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,550.45 : 107,343.80 = 50,531.55 : x
  2. Step 2: Convert to fraction form
    71,550.45/107,343.80 = 50,531.55/x
  3. Step 3: Cross multiply
    71,550.45x = 107,343.80 × 50,531.55
  4. Step 4: Simplify right side
    71,550.45x = 5,424,248,344.23
  5. Step 5: Solve for x
    x = 5,424,248,344.23/71,550.45
  6. Step 6: Final answer
    x = 75,810.12

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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.