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Finding the Fourth Proportional to 170,850.60, 256,348.80 and 82,058.40

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Solution

The fourth proportional to 170,850.60, 256,348.80 and 82,058.40 is: 123,122.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,850.60 : 256,348.80 = 82,058.40 : x
  2. Step 2: Convert to fraction form
    170,850.60/256,348.80 = 82,058.40/x
  3. Step 3: Cross multiply
    170,850.60x = 256,348.80 × 82,058.40
  4. Step 4: Simplify right side
    170,850.60x = 21,035,572,369.92
  5. Step 5: Solve for x
    x = 21,035,572,369.92/170,850.60
  6. Step 6: Final answer
    x = 123,122.61

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1.5x scale

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.