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Finding the Fourth Proportional to 551,043.20, 826,564.80 and 151,745.60

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Solution

The fourth proportional to 551,043.20, 826,564.80 and 151,745.60 is: 227,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,043.20 : 826,564.80 = 151,745.60 : x
  2. Step 2: Convert to fraction form
    551,043.20/826,564.80 = 151,745.60/x
  3. Step 3: Cross multiply
    551,043.20x = 826,564.80 × 151,745.60
  4. Step 4: Simplify right side
    551,043.20x = 125,427,571,514.88
  5. Step 5: Solve for x
    x = 125,427,571,514.88/551,043.20
  6. Step 6: Final answer
    x = 227,618.40

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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.