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Finding the Fourth Proportional to 168,051.12, 252,119.16 and 49,722

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Solution

The fourth proportional to 168,051.12, 252,119.16 and 49,722 is: 74,595.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,051.12 : 252,119.16 = 49,722 : x
  2. Step 2: Convert to fraction form
    168,051.12/252,119.16 = 49,722/x
  3. Step 3: Cross multiply
    168,051.12x = 252,119.16 × 49,722
  4. Step 4: Simplify right side
    168,051.12x = 12,535,868,873.52
  5. Step 5: Solve for x
    x = 12,535,868,873.52/168,051.12
  6. Step 6: Final answer
    x = 74,595.57

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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.