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Finding the Fourth Proportional to 168,640.93, 232,724.57 and 93,189.43

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Solution

The fourth proportional to 168,640.93, 232,724.57 and 93,189.43 is: 128,601.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,640.93 : 232,724.57 = 93,189.43 : x
  2. Step 2: Convert to fraction form
    168,640.93/232,724.57 = 93,189.43/x
  3. Step 3: Cross multiply
    168,640.93x = 232,724.57 × 93,189.43
  4. Step 4: Simplify right side
    168,640.93x = 21,687,468,977.54
  5. Step 5: Solve for x
    x = 21,687,468,977.54/168,640.93
  6. Step 6: Final answer
    x = 128,601.46

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1.5x scale

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.