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Finding the Fourth Proportional to 68,605.10, 102,907.65 and 24,281.90

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Solution

The fourth proportional to 68,605.10, 102,907.65 and 24,281.90 is: 36,422.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,605.10 : 102,907.65 = 24,281.90 : x
  2. Step 2: Convert to fraction form
    68,605.10/102,907.65 = 24,281.90/x
  3. Step 3: Cross multiply
    68,605.10x = 102,907.65 × 24,281.90
  4. Step 4: Simplify right side
    68,605.10x = 2,498,793,266.54
  5. Step 5: Solve for x
    x = 2,498,793,266.54/68,605.10
  6. Step 6: Final answer
    x = 36,422.85

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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.