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Finding the Fourth Proportional to 168,686.20, 253,029.30 and 165,770.20

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Solution

The fourth proportional to 168,686.20, 253,029.30 and 165,770.20 is: 248,655.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,686.20 : 253,029.30 = 165,770.20 : x
  2. Step 2: Convert to fraction form
    168,686.20/253,029.30 = 165,770.20/x
  3. Step 3: Cross multiply
    168,686.20x = 253,029.30 × 165,770.20
  4. Step 4: Simplify right side
    168,686.20x = 41,944,717,666.86
  5. Step 5: Solve for x
    x = 41,944,717,666.86/168,686.20
  6. Step 6: Final answer
    x = 248,655.30

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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.