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Finding the Fourth Proportional to 295,540.80, 443,311.20 and 177,345.60

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Solution

The fourth proportional to 295,540.80, 443,311.20 and 177,345.60 is: 266,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,540.80 : 443,311.20 = 177,345.60 : x
  2. Step 2: Convert to fraction form
    295,540.80/443,311.20 = 177,345.60/x
  3. Step 3: Cross multiply
    295,540.80x = 443,311.20 × 177,345.60
  4. Step 4: Simplify right side
    295,540.80x = 78,619,290,750.72
  5. Step 5: Solve for x
    x = 78,619,290,750.72/295,540.80
  6. Step 6: Final answer
    x = 266,018.40

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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.