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Finding the Fourth Proportional to 84,759.45, 127,180.47 and 34,854.54

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Solution

The fourth proportional to 84,759.45, 127,180.47 and 34,854.54 is: 52,298.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,759.45 : 127,180.47 = 34,854.54 : x
  2. Step 2: Convert to fraction form
    84,759.45/127,180.47 = 34,854.54/x
  3. Step 3: Cross multiply
    84,759.45x = 127,180.47 × 34,854.54
  4. Step 4: Simplify right side
    84,759.45x = 4,432,816,778.83
  5. Step 5: Solve for x
    x = 4,432,816,778.83/84,759.45
  6. Step 6: Final answer
    x = 52,298.79

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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.