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Finding the Fourth Proportional to 261,241.48, 391,516.62 and 94,869.64

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Solution

The fourth proportional to 261,241.48, 391,516.62 and 94,869.64 is: 142,178.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,241.48 : 391,516.62 = 94,869.64 : x
  2. Step 2: Convert to fraction form
    261,241.48/391,516.62 = 94,869.64/x
  3. Step 3: Cross multiply
    261,241.48x = 391,516.62 × 94,869.64
  4. Step 4: Simplify right side
    261,241.48x = 37,143,040,793.42
  5. Step 5: Solve for x
    x = 37,143,040,793.42/261,241.48
  6. Step 6: Final answer
    x = 142,178.96

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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.