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Finding the Fourth Proportional to 329,098.71, 493,667.21 and 92,459.84

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Solution

The fourth proportional to 329,098.71, 493,667.21 and 92,459.84 is: 138,695.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,098.71 : 493,667.21 = 92,459.84 : x
  2. Step 2: Convert to fraction form
    329,098.71/493,667.21 = 92,459.84/x
  3. Step 3: Cross multiply
    329,098.71x = 493,667.21 × 92,459.84
  4. Step 4: Simplify right side
    329,098.71x = 45,644,391,249.85
  5. Step 5: Solve for x
    x = 45,644,391,249.85/329,098.71
  6. Step 6: Final answer
    x = 138,695.14

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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.