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Finding the Fourth Proportional to 191,756.62, 264,624.40 and 115,276.56

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Solution

The fourth proportional to 191,756.62, 264,624.40 and 115,276.56 is: 159,081.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,756.62 : 264,624.40 = 115,276.56 : x
  2. Step 2: Convert to fraction form
    191,756.62/264,624.40 = 115,276.56/x
  3. Step 3: Cross multiply
    191,756.62x = 264,624.40 × 115,276.56
  4. Step 4: Simplify right side
    191,756.62x = 30,504,990,524.06
  5. Step 5: Solve for x
    x = 30,504,990,524.06/191,756.62
  6. Step 6: Final answer
    x = 159,081.81

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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.