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Finding the Fourth Proportional to 168,158, 231,926.76 and 107,734.25

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Solution

The fourth proportional to 168,158, 231,926.76 and 107,734.25 is: 148,589.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,158 : 231,926.76 = 107,734.25 : x
  2. Step 2: Convert to fraction form
    168,158/231,926.76 = 107,734.25/x
  3. Step 3: Cross multiply
    168,158x = 231,926.76 × 107,734.25
  4. Step 4: Simplify right side
    168,158x = 24,986,455,543.53
  5. Step 5: Solve for x
    x = 24,986,455,543.53/168,158
  6. Step 6: Final answer
    x = 148,589.16

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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.