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Finding the Fourth Proportional to 158,957.60, 238,435.78 and 40,628.75

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Solution

The fourth proportional to 158,957.60, 238,435.78 and 40,628.75 is: 60,942.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,957.60 : 238,435.78 = 40,628.75 : x
  2. Step 2: Convert to fraction form
    158,957.60/238,435.78 = 40,628.75/x
  3. Step 3: Cross multiply
    158,957.60x = 238,435.78 × 40,628.75
  4. Step 4: Simplify right side
    158,957.60x = 9,687,347,696.68
  5. Step 5: Solve for x
    x = 9,687,347,696.68/158,957.60
  6. Step 6: Final answer
    x = 60,942.97

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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.