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Finding the Fourth Proportional to 168,335.42, 252,459.92 and 49,979.30

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Solution

The fourth proportional to 168,335.42, 252,459.92 and 49,979.30 is: 74,956.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,335.42 : 252,459.92 = 49,979.30 : x
  2. Step 2: Convert to fraction form
    168,335.42/252,459.92 = 49,979.30/x
  3. Step 3: Cross multiply
    168,335.42x = 252,459.92 × 49,979.30
  4. Step 4: Simplify right side
    168,335.42x = 12,617,768,942.30
  5. Step 5: Solve for x
    x = 12,617,768,942.30/168,335.42
  6. Step 6: Final answer
    x = 74,956.12

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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.