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Finding the Fourth Proportional to 201,604.60, 302,115.30 and 89,192.80

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Solution

The fourth proportional to 201,604.60, 302,115.30 and 89,192.80 is: 133,660.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,604.60 : 302,115.30 = 89,192.80 : x
  2. Step 2: Convert to fraction form
    201,604.60/302,115.30 = 89,192.80/x
  3. Step 3: Cross multiply
    201,604.60x = 302,115.30 × 89,192.80
  4. Step 4: Simplify right side
    201,604.60x = 26,946,509,529.84
  5. Step 5: Solve for x
    x = 26,946,509,529.84/201,604.60
  6. Step 6: Final answer
    x = 133,660.19

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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.