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Finding the Fourth Proportional to 235,141.20, 352,772.55 and 101,990.97

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Solution

The fourth proportional to 235,141.20, 352,772.55 and 101,990.97 is: 153,012.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,141.20 : 352,772.55 = 101,990.97 : x
  2. Step 2: Convert to fraction form
    235,141.20/352,772.55 = 101,990.97/x
  3. Step 3: Cross multiply
    235,141.20x = 352,772.55 × 101,990.97
  4. Step 4: Simplify right side
    235,141.20x = 35,979,614,563.87
  5. Step 5: Solve for x
    x = 35,979,614,563.87/235,141.20
  6. Step 6: Final answer
    x = 153,012.80

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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.