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Finding the Fourth Proportional to 150,605.20, 225,648.60 and 97,987.60

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Solution

The fourth proportional to 150,605.20, 225,648.60 and 97,987.60 is: 146,812.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,605.20 : 225,648.60 = 97,987.60 : x
  2. Step 2: Convert to fraction form
    150,605.20/225,648.60 = 97,987.60/x
  3. Step 3: Cross multiply
    150,605.20x = 225,648.60 × 97,987.60
  4. Step 4: Simplify right side
    150,605.20x = 22,110,764,757.36
  5. Step 5: Solve for x
    x = 22,110,764,757.36/150,605.20
  6. Step 6: Final answer
    x = 146,812.76

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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.