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Finding the Fourth Proportional to 133,360.70, 200,197.34 and 105,299.68

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Solution

The fourth proportional to 133,360.70, 200,197.34 and 105,299.68 is: 158,072.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,360.70 : 200,197.34 = 105,299.68 : x
  2. Step 2: Convert to fraction form
    133,360.70/200,197.34 = 105,299.68/x
  3. Step 3: Cross multiply
    133,360.70x = 200,197.34 × 105,299.68
  4. Step 4: Simplify right side
    133,360.70x = 21,080,715,838.85
  5. Step 5: Solve for x
    x = 21,080,715,838.85/133,360.70
  6. Step 6: Final answer
    x = 158,072.92

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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.