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Finding the Fourth Proportional to 191,791.87, 264,674.85 and 105,751.02

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Solution

The fourth proportional to 191,791.87, 264,674.85 and 105,751.02 is: 145,937.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,791.87 : 264,674.85 = 105,751.02 : x
  2. Step 2: Convert to fraction form
    191,791.87/264,674.85 = 105,751.02/x
  3. Step 3: Cross multiply
    191,791.87x = 264,674.85 × 105,751.02
  4. Step 4: Simplify right side
    191,791.87x = 27,989,635,355.85
  5. Step 5: Solve for x
    x = 27,989,635,355.85/191,791.87
  6. Step 6: Final answer
    x = 145,937.55

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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.