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Finding the Fourth Proportional to 194,447.63, 268,340.11 and 112,794.79

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Solution

The fourth proportional to 194,447.63, 268,340.11 and 112,794.79 is: 155,658.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,447.63 : 268,340.11 = 112,794.79 : x
  2. Step 2: Convert to fraction form
    194,447.63/268,340.11 = 112,794.79/x
  3. Step 3: Cross multiply
    194,447.63x = 268,340.11 × 112,794.79
  4. Step 4: Simplify right side
    194,447.63x = 30,267,366,356.03
  5. Step 5: Solve for x
    x = 30,267,366,356.03/194,447.63
  6. Step 6: Final answer
    x = 155,658.19

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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.