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Finding the Fourth Proportional to 167,436.40, 251,161.90 and 83,236.90

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Solution

The fourth proportional to 167,436.40, 251,161.90 and 83,236.90 is: 124,858.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,436.40 : 251,161.90 = 83,236.90 : x
  2. Step 2: Convert to fraction form
    167,436.40/251,161.90 = 83,236.90/x
  3. Step 3: Cross multiply
    167,436.40x = 251,161.90 × 83,236.90
  4. Step 4: Simplify right side
    167,436.40x = 20,905,937,954.11
  5. Step 5: Solve for x
    x = 20,905,937,954.11/167,436.40
  6. Step 6: Final answer
    x = 124,858.98

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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.