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Finding the Fourth Proportional to 159,448.52, 220,046.46 and 90,542.96

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Solution

The fourth proportional to 159,448.52, 220,046.46 and 90,542.96 is: 124,953.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,448.52 : 220,046.46 = 90,542.96 : x
  2. Step 2: Convert to fraction form
    159,448.52/220,046.46 = 90,542.96/x
  3. Step 3: Cross multiply
    159,448.52x = 220,046.46 × 90,542.96
  4. Step 4: Simplify right side
    159,448.52x = 19,923,657,825.92
  5. Step 5: Solve for x
    x = 19,923,657,825.92/159,448.52
  6. Step 6: Final answer
    x = 124,953.55

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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.