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Finding the Fourth Proportional to 551,246.20, 826,820.70 and 151,851.40

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Solution

The fourth proportional to 551,246.20, 826,820.70 and 151,851.40 is: 227,763.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,246.20 : 826,820.70 = 151,851.40 : x
  2. Step 2: Convert to fraction form
    551,246.20/826,820.70 = 151,851.40/x
  3. Step 3: Cross multiply
    551,246.20x = 826,820.70 × 151,851.40
  4. Step 4: Simplify right side
    551,246.20x = 125,553,880,843.98
  5. Step 5: Solve for x
    x = 125,553,880,843.98/551,246.20
  6. Step 6: Final answer
    x = 227,763.71

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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.