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Finding the Fourth Proportional to 125,596.70, 188,832.45 and 106,351.10

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Solution

The fourth proportional to 125,596.70, 188,832.45 and 106,351.10 is: 159,897.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,596.70 : 188,832.45 = 106,351.10 : x
  2. Step 2: Convert to fraction form
    125,596.70/188,832.45 = 106,351.10/x
  3. Step 3: Cross multiply
    125,596.70x = 188,832.45 × 106,351.10
  4. Step 4: Simplify right side
    125,596.70x = 20,082,538,773.20
  5. Step 5: Solve for x
    x = 20,082,538,773.20/125,596.70
  6. Step 6: Final answer
    x = 159,897.03

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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.