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Finding the Fourth Proportional to 499,266.08, 748,969.84 and 162,198.88

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Solution

The fourth proportional to 499,266.08, 748,969.84 and 162,198.88 is: 243,321.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,266.08 : 748,969.84 = 162,198.88 : x
  2. Step 2: Convert to fraction form
    499,266.08/748,969.84 = 162,198.88/x
  3. Step 3: Cross multiply
    499,266.08x = 748,969.84 × 162,198.88
  4. Step 4: Simplify right side
    499,266.08x = 121,482,069,201.78
  5. Step 5: Solve for x
    x = 121,482,069,201.78/499,266.08
  6. Step 6: Final answer
    x = 243,321.30

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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.