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Finding the Fourth Proportional to 304,966.66, 420,854.97 and 169,002.85

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Solution

The fourth proportional to 304,966.66, 420,854.97 and 169,002.85 is: 233,224.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,966.66 : 420,854.97 = 169,002.85 : x
  2. Step 2: Convert to fraction form
    304,966.66/420,854.97 = 169,002.85/x
  3. Step 3: Cross multiply
    304,966.66x = 420,854.97 × 169,002.85
  4. Step 4: Simplify right side
    304,966.66x = 71,125,689,366.66
  5. Step 5: Solve for x
    x = 71,125,689,366.66/304,966.66
  6. Step 6: Final answer
    x = 233,224.48

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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.