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Finding the Fourth Proportional to 71,563.96, 107,389.62 and 45,232.44

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Solution

The fourth proportional to 71,563.96, 107,389.62 and 45,232.44 is: 67,876.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,563.96 : 107,389.62 = 45,232.44 : x
  2. Step 2: Convert to fraction form
    71,563.96/107,389.62 = 45,232.44/x
  3. Step 3: Cross multiply
    71,563.96x = 107,389.62 × 45,232.44
  4. Step 4: Simplify right side
    71,563.96x = 4,857,494,543.27
  5. Step 5: Solve for x
    x = 4,857,494,543.27/71,563.96
  6. Step 6: Final answer
    x = 67,876.27

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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.