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Finding the Fourth Proportional to 68,950.85, 103,364.71 and 29,487.65

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Solution

The fourth proportional to 68,950.85, 103,364.71 and 29,487.65 is: 44,205.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,950.85 : 103,364.71 = 29,487.65 : x
  2. Step 2: Convert to fraction form
    68,950.85/103,364.71 = 29,487.65/x
  3. Step 3: Cross multiply
    68,950.85x = 103,364.71 × 29,487.65
  4. Step 4: Simplify right side
    68,950.85x = 3,047,981,800.29
  5. Step 5: Solve for x
    x = 3,047,981,800.29/68,950.85
  6. Step 6: Final answer
    x = 44,205.14

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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.