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Finding the Fourth Proportional to 150,396.97, 225,615.45 and 70,424.01

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Solution

The fourth proportional to 150,396.97, 225,615.45 and 70,424.01 is: 105,645.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,396.97 : 225,615.45 = 70,424.01 : x
  2. Step 2: Convert to fraction form
    150,396.97/225,615.45 = 70,424.01/x
  3. Step 3: Cross multiply
    150,396.97x = 225,615.45 × 70,424.01
  4. Step 4: Simplify right side
    150,396.97x = 15,888,745,553.01
  5. Step 5: Solve for x
    x = 15,888,745,553.01/150,396.97
  6. Step 6: Final answer
    x = 105,645.39

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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.