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Finding the Fourth Proportional to 168,041.80, 252,062.70 and 74,547.55

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Solution

The fourth proportional to 168,041.80, 252,062.70 and 74,547.55 is: 111,821.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,041.80 : 252,062.70 = 74,547.55 : x
  2. Step 2: Convert to fraction form
    168,041.80/252,062.70 = 74,547.55/x
  3. Step 3: Cross multiply
    168,041.80x = 252,062.70 × 74,547.55
  4. Step 4: Simplify right side
    168,041.80x = 18,790,656,731.39
  5. Step 5: Solve for x
    x = 18,790,656,731.39/168,041.80
  6. Step 6: Final answer
    x = 111,821.33

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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.