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Finding the Fourth Proportional to 167,209.21, 230,737.35 and 91,762.57

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Solution

The fourth proportional to 167,209.21, 230,737.35 and 91,762.57 is: 126,626.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,209.21 : 230,737.35 = 91,762.57 : x
  2. Step 2: Convert to fraction form
    167,209.21/230,737.35 = 91,762.57/x
  3. Step 3: Cross multiply
    167,209.21x = 230,737.35 × 91,762.57
  4. Step 4: Simplify right side
    167,209.21x = 21,173,052,230.99
  5. Step 5: Solve for x
    x = 21,173,052,230.99/167,209.21
  6. Step 6: Final answer
    x = 126,626.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.