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Finding the Fourth Proportional to 367,612.89, 551,118.01 and 130,820.73

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Solution

The fourth proportional to 367,612.89, 551,118.01 and 130,820.73 is: 196,123.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,612.89 : 551,118.01 = 130,820.73 : x
  2. Step 2: Convert to fraction form
    367,612.89/551,118.01 = 130,820.73/x
  3. Step 3: Cross multiply
    367,612.89x = 551,118.01 × 130,820.73
  4. Step 4: Simplify right side
    367,612.89x = 72,097,660,384.35
  5. Step 5: Solve for x
    x = 72,097,660,384.35/367,612.89
  6. Step 6: Final answer
    x = 196,123.86

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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.