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Finding the Fourth Proportional to 169,912.72, 234,391.20 and 101,897.02

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Solution

The fourth proportional to 169,912.72, 234,391.20 and 101,897.02 is: 140,564.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,912.72 : 234,391.20 = 101,897.02 : x
  2. Step 2: Convert to fraction form
    169,912.72/234,391.20 = 101,897.02/x
  3. Step 3: Cross multiply
    169,912.72x = 234,391.20 × 101,897.02
  4. Step 4: Simplify right side
    169,912.72x = 23,883,764,794.22
  5. Step 5: Solve for x
    x = 23,883,764,794.22/169,912.72
  6. Step 6: Final answer
    x = 140,564.90

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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.