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Finding the Fourth Proportional to 169,666.20, 254,499.30 and 165,729.60

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Solution

The fourth proportional to 169,666.20, 254,499.30 and 165,729.60 is: 248,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,666.20 : 254,499.30 = 165,729.60 : x
  2. Step 2: Convert to fraction form
    169,666.20/254,499.30 = 165,729.60/x
  3. Step 3: Cross multiply
    169,666.20x = 254,499.30 × 165,729.60
  4. Step 4: Simplify right side
    169,666.20x = 42,178,067,189.28
  5. Step 5: Solve for x
    x = 42,178,067,189.28/169,666.20
  6. Step 6: Final answer
    x = 248,594.40

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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.