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Finding the Fourth Proportional to 133,790.87, 200,719.77 and 94,424.87

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Solution

The fourth proportional to 133,790.87, 200,719.77 and 94,424.87 is: 141,660.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,790.87 : 200,719.77 = 94,424.87 : x
  2. Step 2: Convert to fraction form
    133,790.87/200,719.77 = 94,424.87/x
  3. Step 3: Cross multiply
    133,790.87x = 200,719.77 × 94,424.87
  4. Step 4: Simplify right side
    133,790.87x = 18,952,938,188.68
  5. Step 5: Solve for x
    x = 18,952,938,188.68/133,790.87
  6. Step 6: Final answer
    x = 141,660.92

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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.