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Finding the Fourth Proportional to 191,978.28, 264,977.46 and 116,589.96

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Solution

The fourth proportional to 191,978.28, 264,977.46 and 116,589.96 is: 160,922.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,978.28 : 264,977.46 = 116,589.96 : x
  2. Step 2: Convert to fraction form
    191,978.28/264,977.46 = 116,589.96/x
  3. Step 3: Cross multiply
    191,978.28x = 264,977.46 × 116,589.96
  4. Step 4: Simplify right side
    191,978.28x = 30,893,711,462.30
  5. Step 5: Solve for x
    x = 30,893,711,462.30/191,978.28
  6. Step 6: Final answer
    x = 160,922.95

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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.