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Finding the Fourth Proportional to 240,906,849.86, 361,359,549.02 and 68,383,809.38

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Solution

The fourth proportional to 240,906,849.86, 361,359,549.02 and 68,383,809.38 is: 102,575,508.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,906,849.86 : 361,359,549.02 = 68,383,809.38 : x
  2. Step 2: Convert to fraction form
    240,906,849.86/361,359,549.02 = 68,383,809.38/x
  3. Step 3: Cross multiply
    240,906,849.86x = 361,359,549.02 × 68,383,809.38
  4. Step 4: Simplify right side
    240,906,849.86x = 24,711,142,516,190,608
  5. Step 5: Solve for x
    x = 24,711,142,516,190,608/240,906,849.86
  6. Step 6: Final answer
    x = 102,575,508.05

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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.