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Finding the Fourth Proportional to 193,394.64, 266,889.18 and 108,517.98

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Solution

The fourth proportional to 193,394.64, 266,889.18 and 108,517.98 is: 149,757.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,394.64 : 266,889.18 = 108,517.98 : x
  2. Step 2: Convert to fraction form
    193,394.64/266,889.18 = 108,517.98/x
  3. Step 3: Cross multiply
    193,394.64x = 266,889.18 × 108,517.98
  4. Step 4: Simplify right side
    193,394.64x = 28,962,274,697.46
  5. Step 5: Solve for x
    x = 28,962,274,697.46/193,394.64
  6. Step 6: Final answer
    x = 149,757.38

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1.5x scale

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.