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Finding the Fourth Proportional to 191,574.42, 264,380.90 and 106,691.48

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Solution

The fourth proportional to 191,574.42, 264,380.90 and 106,691.48 is: 147,238.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,574.42 : 264,380.90 = 106,691.48 : x
  2. Step 2: Convert to fraction form
    191,574.42/264,380.90 = 106,691.48/x
  3. Step 3: Cross multiply
    191,574.42x = 264,380.90 × 106,691.48
  4. Step 4: Simplify right side
    191,574.42x = 28,207,189,504.73
  5. Step 5: Solve for x
    x = 28,207,189,504.73/191,574.42
  6. Step 6: Final answer
    x = 147,238.81

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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.