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Finding the Fourth Proportional to 279,952.56, 386,341.84 and 172,593.52

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Solution

The fourth proportional to 279,952.56, 386,341.84 and 172,593.52 is: 238,183.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,952.56 : 386,341.84 = 172,593.52 : x
  2. Step 2: Convert to fraction form
    279,952.56/386,341.84 = 172,593.52/x
  3. Step 3: Cross multiply
    279,952.56x = 386,341.84 × 172,593.52
  4. Step 4: Simplify right side
    279,952.56x = 66,680,098,088.88
  5. Step 5: Solve for x
    x = 66,680,098,088.88/279,952.56
  6. Step 6: Final answer
    x = 238,183.56

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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.