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Finding the Fourth Proportional to 173,969.71, 239,912.89 and 113,521.03

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Solution

The fourth proportional to 173,969.71, 239,912.89 and 113,521.03 is: 156,551.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,969.71 : 239,912.89 = 113,521.03 : x
  2. Step 2: Convert to fraction form
    173,969.71/239,912.89 = 113,521.03/x
  3. Step 3: Cross multiply
    173,969.71x = 239,912.89 × 113,521.03
  4. Step 4: Simplify right side
    173,969.71x = 27,235,158,383.08
  5. Step 5: Solve for x
    x = 27,235,158,383.08/173,969.71
  6. Step 6: Final answer
    x = 156,551.15

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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.