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Finding the Fourth Proportional to 193,718.84, 267,384.78 and 125,731.85

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Solution

The fourth proportional to 193,718.84, 267,384.78 and 125,731.85 is: 173,544.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,718.84 : 267,384.78 = 125,731.85 : x
  2. Step 2: Convert to fraction form
    193,718.84/267,384.78 = 125,731.85/x
  3. Step 3: Cross multiply
    193,718.84x = 267,384.78 × 125,731.85
  4. Step 4: Simplify right side
    193,718.84x = 33,618,781,714.32
  5. Step 5: Solve for x
    x = 33,618,781,714.32/193,718.84
  6. Step 6: Final answer
    x = 173,544.21

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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.