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Finding the Fourth Proportional to 479,147.96, 718,566.36 and 159,213.90

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Solution

The fourth proportional to 479,147.96, 718,566.36 and 159,213.90 is: 238,769.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,147.96 : 718,566.36 = 159,213.90 : x
  2. Step 2: Convert to fraction form
    479,147.96/718,566.36 = 159,213.90/x
  3. Step 3: Cross multiply
    479,147.96x = 718,566.36 × 159,213.90
  4. Step 4: Simplify right side
    479,147.96x = 114,405,756,025.34
  5. Step 5: Solve for x
    x = 114,405,756,025.34/479,147.96
  6. Step 6: Final answer
    x = 238,769.16

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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.