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Finding the Fourth Proportional to 71,290.25, 98,369.52 and 41,069.66

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Solution

The fourth proportional to 71,290.25, 98,369.52 and 41,069.66 is: 56,669.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,290.25 : 98,369.52 = 41,069.66 : x
  2. Step 2: Convert to fraction form
    71,290.25/98,369.52 = 41,069.66/x
  3. Step 3: Cross multiply
    71,290.25x = 98,369.52 × 41,069.66
  4. Step 4: Simplify right side
    71,290.25x = 4,040,002,248.92
  5. Step 5: Solve for x
    x = 4,040,002,248.92/71,290.25
  6. Step 6: Final answer
    x = 56,669.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.