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Finding the Fourth Proportional to 69,169.65, 103,688.06 and 44,139.03

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Solution

The fourth proportional to 69,169.65, 103,688.06 and 44,139.03 is: 66,166.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,169.65 : 103,688.06 = 44,139.03 : x
  2. Step 2: Convert to fraction form
    69,169.65/103,688.06 = 44,139.03/x
  3. Step 3: Cross multiply
    69,169.65x = 103,688.06 × 44,139.03
  4. Step 4: Simplify right side
    69,169.65x = 4,576,690,170.29
  5. Step 5: Solve for x
    x = 4,576,690,170.29/69,169.65
  6. Step 6: Final answer
    x = 66,166.16

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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.