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Finding the Fourth Proportional to 191,912.72, 264,839.04 and 107,029.88

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Solution

The fourth proportional to 191,912.72, 264,839.04 and 107,029.88 is: 147,700.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,912.72 : 264,839.04 = 107,029.88 : x
  2. Step 2: Convert to fraction form
    191,912.72/264,839.04 = 107,029.88/x
  3. Step 3: Cross multiply
    191,912.72x = 264,839.04 × 107,029.88
  4. Step 4: Simplify right side
    191,912.72x = 28,345,690,670.52
  5. Step 5: Solve for x
    x = 28,345,690,670.52/191,912.72
  6. Step 6: Final answer
    x = 147,700.95

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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.