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Finding the Fourth Proportional to 367,654.21, 551,004.51 and 165,100.75

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Solution

The fourth proportional to 367,654.21, 551,004.51 and 165,100.75 is: 247,437.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,654.21 : 551,004.51 = 165,100.75 : x
  2. Step 2: Convert to fraction form
    367,654.21/551,004.51 = 165,100.75/x
  3. Step 3: Cross multiply
    367,654.21x = 551,004.51 × 165,100.75
  4. Step 4: Simplify right side
    367,654.21x = 90,971,257,854.38
  5. Step 5: Solve for x
    x = 90,971,257,854.38/367,654.21
  6. Step 6: Final answer
    x = 247,437.01

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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.