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Finding the Fourth Proportional to 367,461.38, 551,270.78 and 127,582.79

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Solution

The fourth proportional to 367,461.38, 551,270.78 and 127,582.79 is: 191,401.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,461.38 : 551,270.78 = 127,582.79 : x
  2. Step 2: Convert to fraction form
    367,461.38/551,270.78 = 127,582.79/x
  3. Step 3: Cross multiply
    367,461.38x = 551,270.78 × 127,582.79
  4. Step 4: Simplify right side
    367,461.38x = 70,332,660,763.61
  5. Step 5: Solve for x
    x = 70,332,660,763.61/367,461.38
  6. Step 6: Final answer
    x = 191,401.51

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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.