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Finding the Fourth Proportional to 288,067.20, 432,100.80 and 182,961.60

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Solution

The fourth proportional to 288,067.20, 432,100.80 and 182,961.60 is: 274,442.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,067.20 : 432,100.80 = 182,961.60 : x
  2. Step 2: Convert to fraction form
    288,067.20/432,100.80 = 182,961.60/x
  3. Step 3: Cross multiply
    288,067.20x = 432,100.80 × 182,961.60
  4. Step 4: Simplify right side
    288,067.20x = 79,057,853,729.28
  5. Step 5: Solve for x
    x = 79,057,853,729.28/288,067.20
  6. Step 6: Final answer
    x = 274,442.40

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1.5x scale

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.