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Finding the Fourth Proportional to 68,951.85, 103,366.21 and 29,488.65

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Solution

The fourth proportional to 68,951.85, 103,366.21 and 29,488.65 is: 44,206.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,951.85 : 103,366.21 = 29,488.65 : x
  2. Step 2: Convert to fraction form
    68,951.85/103,366.21 = 29,488.65/x
  3. Step 3: Cross multiply
    68,951.85x = 103,366.21 × 29,488.65
  4. Step 4: Simplify right side
    68,951.85x = 3,048,129,988.52
  5. Step 5: Solve for x
    x = 3,048,129,988.52/68,951.85
  6. Step 6: Final answer
    x = 44,206.65

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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.