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Finding the Fourth Proportional to 85,286.52, 127,930.86 and 22,957.02

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Solution

The fourth proportional to 85,286.52, 127,930.86 and 22,957.02 is: 34,435.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,286.52 : 127,930.86 = 22,957.02 : x
  2. Step 2: Convert to fraction form
    85,286.52/127,930.86 = 22,957.02/x
  3. Step 3: Cross multiply
    85,286.52x = 127,930.86 × 22,957.02
  4. Step 4: Simplify right side
    85,286.52x = 2,936,911,311.64
  5. Step 5: Solve for x
    x = 2,936,911,311.64/85,286.52
  6. Step 6: Final answer
    x = 34,435.82

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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.