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Finding the Fourth Proportional to 69,251.10, 103,894.17 and 19,331.16

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Solution

The fourth proportional to 69,251.10, 103,894.17 and 19,331.16 is: 29,001.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,251.10 : 103,894.17 = 19,331.16 : x
  2. Step 2: Convert to fraction form
    69,251.10/103,894.17 = 19,331.16/x
  3. Step 3: Cross multiply
    69,251.10x = 103,894.17 × 19,331.16
  4. Step 4: Simplify right side
    69,251.10x = 2,008,394,823.34
  5. Step 5: Solve for x
    x = 2,008,394,823.34/69,251.10
  6. Step 6: Final answer
    x = 29,001.63

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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.