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Finding the Fourth Proportional to 68,479.01, 102,708.95 and 23,499.66

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Solution

The fourth proportional to 68,479.01, 102,708.95 and 23,499.66 is: 35,246.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,479.01 : 102,708.95 = 23,499.66 : x
  2. Step 2: Convert to fraction form
    68,479.01/102,708.95 = 23,499.66/x
  3. Step 3: Cross multiply
    68,479.01x = 102,708.95 × 23,499.66
  4. Step 4: Simplify right side
    68,479.01x = 2,413,625,869.90
  5. Step 5: Solve for x
    x = 2,413,625,869.90/68,479.01
  6. Step 6: Final answer
    x = 35,246.21

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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.