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Finding the Fourth Proportional to 110,469.56, 152,399.50 and 74,646.52

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Solution

The fourth proportional to 110,469.56, 152,399.50 and 74,646.52 is: 102,979.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,469.56 : 152,399.50 = 74,646.52 : x
  2. Step 2: Convert to fraction form
    110,469.56/152,399.50 = 74,646.52/x
  3. Step 3: Cross multiply
    110,469.56x = 152,399.50 × 74,646.52
  4. Step 4: Simplify right side
    110,469.56x = 11,376,092,324.74
  5. Step 5: Solve for x
    x = 11,376,092,324.74/110,469.56
  6. Step 6: Final answer
    x = 102,979.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.