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Finding the Fourth Proportional to 279,977.69, 386,402.49 and 176,761.82

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Solution

The fourth proportional to 279,977.69, 386,402.49 and 176,761.82 is: 243,952.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,977.69 : 386,402.49 = 176,761.82 : x
  2. Step 2: Convert to fraction form
    279,977.69/386,402.49 = 176,761.82/x
  3. Step 3: Cross multiply
    279,977.69x = 386,402.49 × 176,761.82
  4. Step 4: Simplify right side
    279,977.69x = 68,301,205,452.92
  5. Step 5: Solve for x
    x = 68,301,205,452.92/279,977.69
  6. Step 6: Final answer
    x = 243,952.32

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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.