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Finding the Fourth Proportional to 168,988.56, 233,110.80 and 108,568.20

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Solution

The fourth proportional to 168,988.56, 233,110.80 and 108,568.20 is: 149,764.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,988.56 : 233,110.80 = 108,568.20 : x
  2. Step 2: Convert to fraction form
    168,988.56/233,110.80 = 108,568.20/x
  3. Step 3: Cross multiply
    168,988.56x = 233,110.80 × 108,568.20
  4. Step 4: Simplify right side
    168,988.56x = 25,308,419,956.56
  5. Step 5: Solve for x
    x = 25,308,419,956.56/168,988.56
  6. Step 6: Final answer
    x = 149,764.10

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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.