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Finding the Fourth Proportional to 170,844.60, 256,339.80 and 82,052.40

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Solution

The fourth proportional to 170,844.60, 256,339.80 and 82,052.40 is: 123,113.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,844.60 : 256,339.80 = 82,052.40 : x
  2. Step 2: Convert to fraction form
    170,844.60/256,339.80 = 82,052.40/x
  3. Step 3: Cross multiply
    170,844.60x = 256,339.80 × 82,052.40
  4. Step 4: Simplify right side
    170,844.60x = 21,033,295,805.52
  5. Step 5: Solve for x
    x = 21,033,295,805.52/170,844.60
  6. Step 6: Final answer
    x = 123,113.61

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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.