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Finding the Fourth Proportional to 295,337.20, 443,135.40 and 137,484.40

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Solution

The fourth proportional to 295,337.20, 443,135.40 and 137,484.40 is: 206,286.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,337.20 : 443,135.40 = 137,484.40 : x
  2. Step 2: Convert to fraction form
    295,337.20/443,135.40 = 137,484.40/x
  3. Step 3: Cross multiply
    295,337.20x = 443,135.40 × 137,484.40
  4. Step 4: Simplify right side
    295,337.20x = 60,924,204,587.76
  5. Step 5: Solve for x
    x = 60,924,204,587.76/295,337.20
  6. Step 6: Final answer
    x = 206,286.93

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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.