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Finding the Fourth Proportional to 168,683.40, 232,744.73 and 100,722.38

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Solution

The fourth proportional to 168,683.40, 232,744.73 and 100,722.38 is: 138,973.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,683.40 : 232,744.73 = 100,722.38 : x
  2. Step 2: Convert to fraction form
    168,683.40/232,744.73 = 100,722.38/x
  3. Step 3: Cross multiply
    168,683.40x = 232,744.73 × 100,722.38
  4. Step 4: Simplify right side
    168,683.40x = 23,442,601,470.72
  5. Step 5: Solve for x
    x = 23,442,601,470.72/168,683.40
  6. Step 6: Final answer
    x = 138,973.97

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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.