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Finding the Fourth Proportional to 133,909.56, 200,788.22 and 103,503.94

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Solution

The fourth proportional to 133,909.56, 200,788.22 and 103,503.94 is: 155,197.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,909.56 : 200,788.22 = 103,503.94 : x
  2. Step 2: Convert to fraction form
    133,909.56/200,788.22 = 103,503.94/x
  3. Step 3: Cross multiply
    133,909.56x = 200,788.22 × 103,503.94
  4. Step 4: Simplify right side
    133,909.56x = 20,782,371,632.38
  5. Step 5: Solve for x
    x = 20,782,371,632.38/133,909.56
  6. Step 6: Final answer
    x = 155,197.07

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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.