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Finding the Fourth Proportional to 133,847.72, 200,790.11 and 45,126.60

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Solution

The fourth proportional to 133,847.72, 200,790.11 and 45,126.60 is: 67,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,847.72 : 200,790.11 = 45,126.60 : x
  2. Step 2: Convert to fraction form
    133,847.72/200,790.11 = 45,126.60/x
  3. Step 3: Cross multiply
    133,847.72x = 200,790.11 × 45,126.60
  4. Step 4: Simplify right side
    133,847.72x = 9,060,974,977.93
  5. Step 5: Solve for x
    x = 9,060,974,977.93/133,847.72
  6. Step 6: Final answer
    x = 67,696.15

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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.