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Finding the Fourth Proportional to 225,808.90, 338,770.30 and 159,378.77

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Solution

The fourth proportional to 225,808.90, 338,770.30 and 159,378.77 is: 239,108.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,808.90 : 338,770.30 = 159,378.77 : x
  2. Step 2: Convert to fraction form
    225,808.90/338,770.30 = 159,378.77/x
  3. Step 3: Cross multiply
    225,808.90x = 338,770.30 × 159,378.77
  4. Step 4: Simplify right side
    225,808.90x = 53,992,794,473.85
  5. Step 5: Solve for x
    x = 53,992,794,473.85/225,808.90
  6. Step 6: Final answer
    x = 239,108.36

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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.