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Finding the Fourth Proportional to 133,389.94, 200,085.25 and 54,504.17

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Solution

The fourth proportional to 133,389.94, 200,085.25 and 54,504.17 is: 81,756.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,389.94 : 200,085.25 = 54,504.17 : x
  2. Step 2: Convert to fraction form
    133,389.94/200,085.25 = 54,504.17/x
  3. Step 3: Cross multiply
    133,389.94x = 200,085.25 × 54,504.17
  4. Step 4: Simplify right side
    133,389.94x = 10,905,479,480.29
  5. Step 5: Solve for x
    x = 10,905,479,480.29/133,389.94
  6. Step 6: Final answer
    x = 81,756.39

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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.