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Finding the Fourth Proportional to 135,169.05, 201,611.04 and 127,363.89

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Solution

The fourth proportional to 135,169.05, 201,611.04 and 127,363.89 is: 189,969.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,169.05 : 201,611.04 = 127,363.89 : x
  2. Step 2: Convert to fraction form
    135,169.05/201,611.04 = 127,363.89/x
  3. Step 3: Cross multiply
    135,169.05x = 201,611.04 × 127,363.89
  4. Step 4: Simplify right side
    135,169.05x = 25,677,966,321.35
  5. Step 5: Solve for x
    x = 25,677,966,321.35/135,169.05
  6. Step 6: Final answer
    x = 189,969.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.