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Finding the Fourth Proportional to 331,891.88, 498,207.08 and 171,925.11

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Solution

The fourth proportional to 331,891.88, 498,207.08 and 171,925.11 is: 258,078.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,891.88 : 498,207.08 = 171,925.11 : x
  2. Step 2: Convert to fraction form
    331,891.88/498,207.08 = 171,925.11/x
  3. Step 3: Cross multiply
    331,891.88x = 498,207.08 × 171,925.11
  4. Step 4: Simplify right side
    331,891.88x = 85,654,307,417.67
  5. Step 5: Solve for x
    x = 85,654,307,417.67/331,891.88
  6. Step 6: Final answer
    x = 258,078.95

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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.