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Finding the Fourth Proportional to 69,690.59, 104,542.79 and 22,293.78

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Solution

The fourth proportional to 69,690.59, 104,542.79 and 22,293.78 is: 33,442.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,690.59 : 104,542.79 = 22,293.78 : x
  2. Step 2: Convert to fraction form
    69,690.59/104,542.79 = 22,293.78/x
  3. Step 3: Cross multiply
    69,690.59x = 104,542.79 × 22,293.78
  4. Step 4: Simplify right side
    69,690.59x = 2,330,653,849.38
  5. Step 5: Solve for x
    x = 2,330,653,849.38/69,690.59
  6. Step 6: Final answer
    x = 33,442.88

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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.