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Finding the Fourth Proportional to 551,281.01, 826,978.71 and 151,921.85

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Solution

The fourth proportional to 551,281.01, 826,978.71 and 151,921.85 is: 227,898.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,281.01 : 826,978.71 = 151,921.85 : x
  2. Step 2: Convert to fraction form
    551,281.01/826,978.71 = 151,921.85/x
  3. Step 3: Cross multiply
    551,281.01x = 826,978.71 × 151,921.85
  4. Step 4: Simplify right side
    551,281.01x = 125,636,131,398.92
  5. Step 5: Solve for x
    x = 125,636,131,398.92/551,281.01
  6. Step 6: Final answer
    x = 227,898.53

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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.