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Finding the Fourth Proportional to 368,744.39, 553,174.90 and 132,081.83

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Solution

The fourth proportional to 368,744.39, 553,174.90 and 132,081.83 is: 198,143.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,744.39 : 553,174.90 = 132,081.83 : x
  2. Step 2: Convert to fraction form
    368,744.39/553,174.90 = 132,081.83/x
  3. Step 3: Cross multiply
    368,744.39x = 553,174.90 × 132,081.83
  4. Step 4: Simplify right side
    368,744.39x = 73,064,350,005.99
  5. Step 5: Solve for x
    x = 73,064,350,005.99/368,744.39
  6. Step 6: Final answer
    x = 198,143.63

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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.