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Finding the Fourth Proportional to 389,333.92, 584,061.36 and 164,694.88

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Solution

The fourth proportional to 389,333.92, 584,061.36 and 164,694.88 is: 247,067.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,333.92 : 584,061.36 = 164,694.88 : x
  2. Step 2: Convert to fraction form
    389,333.92/584,061.36 = 164,694.88/x
  3. Step 3: Cross multiply
    389,333.92x = 584,061.36 × 164,694.88
  4. Step 4: Simplify right side
    389,333.92x = 96,191,915,597.84
  5. Step 5: Solve for x
    x = 96,191,915,597.84/389,333.92
  6. Step 6: Final answer
    x = 247,067.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.