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Finding the Fourth Proportional to 75,363.40, 113,045.10 and 71,062.60

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Solution

The fourth proportional to 75,363.40, 113,045.10 and 71,062.60 is: 106,593.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,363.40 : 113,045.10 = 71,062.60 : x
  2. Step 2: Convert to fraction form
    75,363.40/113,045.10 = 71,062.60/x
  3. Step 3: Cross multiply
    75,363.40x = 113,045.10 × 71,062.60
  4. Step 4: Simplify right side
    75,363.40x = 8,033,278,723.26
  5. Step 5: Solve for x
    x = 8,033,278,723.26/75,363.40
  6. Step 6: Final answer
    x = 106,593.90

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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.