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Finding the Fourth Proportional to 356,540.56, 534,750.68 and 167,021.20

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Solution

The fourth proportional to 356,540.56, 534,750.68 and 167,021.20 is: 250,503.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,540.56 : 534,750.68 = 167,021.20 : x
  2. Step 2: Convert to fraction form
    356,540.56/534,750.68 = 167,021.20/x
  3. Step 3: Cross multiply
    356,540.56x = 534,750.68 × 167,021.20
  4. Step 4: Simplify right side
    356,540.56x = 89,314,700,274.42
  5. Step 5: Solve for x
    x = 89,314,700,274.42/356,540.56
  6. Step 6: Final answer
    x = 250,503.62

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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.