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Finding the Fourth Proportional to 158,707.92, 238,063.26 and 40,379.38

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Solution

The fourth proportional to 158,707.92, 238,063.26 and 40,379.38 is: 60,569.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,707.92 : 238,063.26 = 40,379.38 : x
  2. Step 2: Convert to fraction form
    158,707.92/238,063.26 = 40,379.38/x
  3. Step 3: Cross multiply
    158,707.92x = 238,063.26 × 40,379.38
  4. Step 4: Simplify right side
    158,707.92x = 9,612,846,839.58
  5. Step 5: Solve for x
    x = 9,612,846,839.58/158,707.92
  6. Step 6: Final answer
    x = 60,569.42

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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.