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Finding the Fourth Proportional to 133,661, 200,335.98 and 54,679.52

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Solution

The fourth proportional to 133,661, 200,335.98 and 54,679.52 is: 81,955.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,661 : 200,335.98 = 54,679.52 : x
  2. Step 2: Convert to fraction form
    133,661/200,335.98 = 54,679.52/x
  3. Step 3: Cross multiply
    133,661x = 200,335.98 × 54,679.52
  4. Step 4: Simplify right side
    133,661x = 10,954,275,225.13
  5. Step 5: Solve for x
    x = 10,954,275,225.13/133,661
  6. Step 6: Final answer
    x = 81,955.66

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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.