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Finding the Fourth Proportional to 239,609.79, 359,309.75 and 89,744.94

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Solution

The fourth proportional to 239,609.79, 359,309.75 and 89,744.94 is: 134,578.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,609.79 : 359,309.75 = 89,744.94 : x
  2. Step 2: Convert to fraction form
    239,609.79/359,309.75 = 89,744.94/x
  3. Step 3: Cross multiply
    239,609.79x = 359,309.75 × 89,744.94
  4. Step 4: Simplify right side
    239,609.79x = 32,246,231,506.44
  5. Step 5: Solve for x
    x = 32,246,231,506.44/239,609.79
  6. Step 6: Final answer
    x = 134,578.11

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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.