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Finding the Fourth Proportional to 158,879.78, 238,319.45 and 40,551.12

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Solution

The fourth proportional to 158,879.78, 238,319.45 and 40,551.12 is: 60,826.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,879.78 : 238,319.45 = 40,551.12 : x
  2. Step 2: Convert to fraction form
    158,879.78/238,319.45 = 40,551.12/x
  3. Step 3: Cross multiply
    158,879.78x = 238,319.45 × 40,551.12
  4. Step 4: Simplify right side
    158,879.78x = 9,664,120,615.28
  5. Step 5: Solve for x
    x = 9,664,120,615.28/158,879.78
  6. Step 6: Final answer
    x = 60,826.62

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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.