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Finding the Fourth Proportional to 68,603.10, 102,904.65 and 24,279.90

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Solution

The fourth proportional to 68,603.10, 102,904.65 and 24,279.90 is: 36,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,603.10 : 102,904.65 = 24,279.90 : x
  2. Step 2: Convert to fraction form
    68,603.10/102,904.65 = 24,279.90/x
  3. Step 3: Cross multiply
    68,603.10x = 102,904.65 × 24,279.90
  4. Step 4: Simplify right side
    68,603.10x = 2,498,514,611.54
  5. Step 5: Solve for x
    x = 2,498,514,611.54/68,603.10
  6. Step 6: Final answer
    x = 36,419.85

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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.