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Finding the Fourth Proportional to 194,620.10, 291,930.15 and 110,639.30

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Solution

The fourth proportional to 194,620.10, 291,930.15 and 110,639.30 is: 165,958.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,620.10 : 291,930.15 = 110,639.30 : x
  2. Step 2: Convert to fraction form
    194,620.10/291,930.15 = 110,639.30/x
  3. Step 3: Cross multiply
    194,620.10x = 291,930.15 × 110,639.30
  4. Step 4: Simplify right side
    194,620.10x = 32,298,947,444.90
  5. Step 5: Solve for x
    x = 32,298,947,444.90/194,620.10
  6. Step 6: Final answer
    x = 165,958.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.