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Finding the Fourth Proportional to 69,613.05, 96,066.11 and 37,781.95

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Solution

The fourth proportional to 69,613.05, 96,066.11 and 37,781.95 is: 52,139.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,613.05 : 96,066.11 = 37,781.95 : x
  2. Step 2: Convert to fraction form
    69,613.05/96,066.11 = 37,781.95/x
  3. Step 3: Cross multiply
    69,613.05x = 96,066.11 × 37,781.95
  4. Step 4: Simplify right side
    69,613.05x = 3,629,565,163.05
  5. Step 5: Solve for x
    x = 3,629,565,163.05/69,613.05
  6. Step 6: Final answer
    x = 52,139.15

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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.