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Finding the Fourth Proportional to 367,543.39, 551,313.55 and 143,060.38

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Solution

The fourth proportional to 367,543.39, 551,313.55 and 143,060.38 is: 214,589.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,543.39 : 551,313.55 = 143,060.38 : x
  2. Step 2: Convert to fraction form
    367,543.39/551,313.55 = 143,060.38/x
  3. Step 3: Cross multiply
    367,543.39x = 551,313.55 × 143,060.38
  4. Step 4: Simplify right side
    367,543.39x = 78,871,123,205.58
  5. Step 5: Solve for x
    x = 78,871,123,205.58/367,543.39
  6. Step 6: Final answer
    x = 214,589.96

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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.