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Finding the Fourth Proportional to 140,450.01, 210,758.22 and 51,765.81

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Solution

The fourth proportional to 140,450.01, 210,758.22 and 51,765.81 is: 77,679.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,450.01 : 210,758.22 = 51,765.81 : x
  2. Step 2: Convert to fraction form
    140,450.01/210,758.22 = 51,765.81/x
  3. Step 3: Cross multiply
    140,450.01x = 210,758.22 × 51,765.81
  4. Step 4: Simplify right side
    140,450.01x = 10,910,069,972.46
  5. Step 5: Solve for x
    x = 10,910,069,972.46/140,450.01
  6. Step 6: Final answer
    x = 77,679.38

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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.