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Finding the Fourth Proportional to 84,759.52, 127,090 and 32,140.28

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Solution

The fourth proportional to 84,759.52, 127,090 and 32,140.28 is: 48,191.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,759.52 : 127,090 = 32,140.28 : x
  2. Step 2: Convert to fraction form
    84,759.52/127,090 = 32,140.28/x
  3. Step 3: Cross multiply
    84,759.52x = 127,090 × 32,140.28
  4. Step 4: Simplify right side
    84,759.52x = 4,084,708,185.20
  5. Step 5: Solve for x
    x = 4,084,708,185.20/84,759.52
  6. Step 6: Final answer
    x = 48,191.73

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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.