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Finding the Fourth Proportional to 451,211.67, 676,783.67 and 131,366.00

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Solution

The fourth proportional to 451,211.67, 676,783.67 and 131,366.00 is: 197,039.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,211.67 : 676,783.67 = 131,366.00 : x
  2. Step 2: Convert to fraction form
    451,211.67/676,783.67 = 131,366.00/x
  3. Step 3: Cross multiply
    451,211.67x = 676,783.67 × 131,366.00
  4. Step 4: Simplify right side
    451,211.67x = 88,906,359,552.47
  5. Step 5: Solve for x
    x = 88,906,359,552.47/451,211.67
  6. Step 6: Final answer
    x = 197,039.14

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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.