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Finding the Fourth Proportional to 69,291.93, 103,677.87 and 41,108.79

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Solution

The fourth proportional to 69,291.93, 103,677.87 and 41,108.79 is: 61,508.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,291.93 : 103,677.87 = 41,108.79 : x
  2. Step 2: Convert to fraction form
    69,291.93/103,677.87 = 41,108.79/x
  3. Step 3: Cross multiply
    69,291.93x = 103,677.87 × 41,108.79
  4. Step 4: Simplify right side
    69,291.93x = 4,262,071,785.48
  5. Step 5: Solve for x
    x = 4,262,071,785.48/69,291.93
  6. Step 6: Final answer
    x = 61,508.92

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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.