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Finding the Fourth Proportional to 69,174.61, 103,719.29 and 27,005.60

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Solution

The fourth proportional to 69,174.61, 103,719.29 and 27,005.60 is: 40,491.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,174.61 : 103,719.29 = 27,005.60 : x
  2. Step 2: Convert to fraction form
    69,174.61/103,719.29 = 27,005.60/x
  3. Step 3: Cross multiply
    69,174.61x = 103,719.29 × 27,005.60
  4. Step 4: Simplify right side
    69,174.61x = 2,801,001,782.29
  5. Step 5: Solve for x
    x = 2,801,001,782.29/69,174.61
  6. Step 6: Final answer
    x = 40,491.76

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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.