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Finding the Fourth Proportional to 239,816.53, 330,947.61 and 132,386.32

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Solution

The fourth proportional to 239,816.53, 330,947.61 and 132,386.32 is: 182,693.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,816.53 : 330,947.61 = 132,386.32 : x
  2. Step 2: Convert to fraction form
    239,816.53/330,947.61 = 132,386.32/x
  3. Step 3: Cross multiply
    239,816.53x = 330,947.61 × 132,386.32
  4. Step 4: Simplify right side
    239,816.53x = 43,812,936,200.70
  5. Step 5: Solve for x
    x = 43,812,936,200.70/239,816.53
  6. Step 6: Final answer
    x = 182,693.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.