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Finding the Fourth Proportional to 267,571.20, 369,498 and 172,243.28

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Solution

The fourth proportional to 267,571.20, 369,498 and 172,243.28 is: 237,856.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,571.20 : 369,498 = 172,243.28 : x
  2. Step 2: Convert to fraction form
    267,571.20/369,498 = 172,243.28/x
  3. Step 3: Cross multiply
    267,571.20x = 369,498 × 172,243.28
  4. Step 4: Simplify right side
    267,571.20x = 63,643,547,473.44
  5. Step 5: Solve for x
    x = 63,643,547,473.44/267,571.20
  6. Step 6: Final answer
    x = 237,856.49

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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.