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Finding the Fourth Proportional to 68,808.61, 103,180.38 and 26,708.86

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Solution

The fourth proportional to 68,808.61, 103,180.38 and 26,708.86 is: 40,050.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,808.61 : 103,180.38 = 26,708.86 : x
  2. Step 2: Convert to fraction form
    68,808.61/103,180.38 = 26,708.86/x
  3. Step 3: Cross multiply
    68,808.61x = 103,180.38 × 26,708.86
  4. Step 4: Simplify right side
    68,808.61x = 2,755,830,324.17
  5. Step 5: Solve for x
    x = 2,755,830,324.17/68,808.61
  6. Step 6: Final answer
    x = 40,050.66

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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.