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Finding the Fourth Proportional to 329,969.43, 455,358.11 and 179,066.43

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Solution

The fourth proportional to 329,969.43, 455,358.11 and 179,066.43 is: 247,111.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,969.43 : 455,358.11 = 179,066.43 : x
  2. Step 2: Convert to fraction form
    329,969.43/455,358.11 = 179,066.43/x
  3. Step 3: Cross multiply
    329,969.43x = 455,358.11 × 179,066.43
  4. Step 4: Simplify right side
    329,969.43x = 81,539,350,233.92
  5. Step 5: Solve for x
    x = 81,539,350,233.92/329,969.43
  6. Step 6: Final answer
    x = 247,111.83

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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.