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Finding the Fourth Proportional to 69,789.90, 104,695.24 and 32,353.76

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Solution

The fourth proportional to 69,789.90, 104,695.24 and 32,353.76 is: 48,535.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,789.90 : 104,695.24 = 32,353.76 : x
  2. Step 2: Convert to fraction form
    69,789.90/104,695.24 = 32,353.76/x
  3. Step 3: Cross multiply
    69,789.90x = 104,695.24 × 32,353.76
  4. Step 4: Simplify right side
    69,789.90x = 3,387,284,668.10
  5. Step 5: Solve for x
    x = 3,387,284,668.10/69,789.90
  6. Step 6: Final answer
    x = 48,535.46

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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.