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Finding the Fourth Proportional to 168,808.20, 253,212.30 and 109,710.60

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Solution

The fourth proportional to 168,808.20, 253,212.30 and 109,710.60 is: 164,565.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,808.20 : 253,212.30 = 109,710.60 : x
  2. Step 2: Convert to fraction form
    168,808.20/253,212.30 = 109,710.60/x
  3. Step 3: Cross multiply
    168,808.20x = 253,212.30 × 109,710.60
  4. Step 4: Simplify right side
    168,808.20x = 27,780,073,360.38
  5. Step 5: Solve for x
    x = 27,780,073,360.38/168,808.20
  6. Step 6: Final answer
    x = 164,565.90

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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.