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Finding the Fourth Proportional to 225,848.80, 338,773.20 and 120,613.60

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Solution

The fourth proportional to 225,848.80, 338,773.20 and 120,613.60 is: 180,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,848.80 : 338,773.20 = 120,613.60 : x
  2. Step 2: Convert to fraction form
    225,848.80/338,773.20 = 120,613.60/x
  3. Step 3: Cross multiply
    225,848.80x = 338,773.20 × 120,613.60
  4. Step 4: Simplify right side
    225,848.80x = 40,860,655,235.52
  5. Step 5: Solve for x
    x = 40,860,655,235.52/225,848.80
  6. Step 6: Final answer
    x = 180,920.40

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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.