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Finding the Fourth Proportional to 239,750.65, 359,585.65 and 87,916.33

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Solution

The fourth proportional to 239,750.65, 359,585.65 and 87,916.33 is: 131,859.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,750.65 : 359,585.65 = 87,916.33 : x
  2. Step 2: Convert to fraction form
    239,750.65/359,585.65 = 87,916.33/x
  3. Step 3: Cross multiply
    239,750.65x = 359,585.65 × 87,916.33
  4. Step 4: Simplify right side
    239,750.65x = 31,613,450,668.66
  5. Step 5: Solve for x
    x = 31,613,450,668.66/239,750.65
  6. Step 6: Final answer
    x = 131,859.71

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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.