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Finding the Fourth Proportional to 367,554.10, 551,331.15 and 157,213.30

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Solution

The fourth proportional to 367,554.10, 551,331.15 and 157,213.30 is: 235,819.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,554.10 : 551,331.15 = 157,213.30 : x
  2. Step 2: Convert to fraction form
    367,554.10/551,331.15 = 157,213.30/x
  3. Step 3: Cross multiply
    367,554.10x = 551,331.15 × 157,213.30
  4. Step 4: Simplify right side
    367,554.10x = 86,676,589,484.30
  5. Step 5: Solve for x
    x = 86,676,589,484.30/367,554.10
  6. Step 6: Final answer
    x = 235,819.95

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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.