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Finding the Fourth Proportional to 193,286.60, 266,737.40 and 108,401.84

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Solution

The fourth proportional to 193,286.60, 266,737.40 and 108,401.84 is: 149,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,286.60 : 266,737.40 = 108,401.84 : x
  2. Step 2: Convert to fraction form
    193,286.60/266,737.40 = 108,401.84/x
  3. Step 3: Cross multiply
    193,286.60x = 266,737.40 × 108,401.84
  4. Step 4: Simplify right side
    193,286.60x = 28,914,824,956.82
  5. Step 5: Solve for x
    x = 28,914,824,956.82/193,286.60
  6. Step 6: Final answer
    x = 149,595.60

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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.