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Finding the Fourth Proportional to 203,256.88, 304,836.31 and 84,864.04

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Solution

The fourth proportional to 203,256.88, 304,836.31 and 84,864.04 is: 127,275.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,256.88 : 304,836.31 = 84,864.04 : x
  2. Step 2: Convert to fraction form
    203,256.88/304,836.31 = 84,864.04/x
  3. Step 3: Cross multiply
    203,256.88x = 304,836.31 × 84,864.04
  4. Step 4: Simplify right side
    203,256.88x = 25,869,640,149.28
  5. Step 5: Solve for x
    x = 25,869,640,149.28/203,256.88
  6. Step 6: Final answer
    x = 127,275.60

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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.