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Finding the Fourth Proportional to 170,816.60, 256,297.80 and 82,024.40

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Solution

The fourth proportional to 170,816.60, 256,297.80 and 82,024.40 is: 123,071.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,816.60 : 256,297.80 = 82,024.40 : x
  2. Step 2: Convert to fraction form
    170,816.60/256,297.80 = 82,024.40/x
  3. Step 3: Cross multiply
    170,816.60x = 256,297.80 × 82,024.40
  4. Step 4: Simplify right side
    170,816.60x = 21,022,673,266.32
  5. Step 5: Solve for x
    x = 21,022,673,266.32/170,816.60
  6. Step 6: Final answer
    x = 123,071.61

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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.