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Finding the Fourth Proportional to 150,632.64, 225,647.73 and 90,628.02

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Solution

The fourth proportional to 150,632.64, 225,647.73 and 90,628.02 is: 135,760.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,632.64 : 225,647.73 = 90,628.02 : x
  2. Step 2: Convert to fraction form
    150,632.64/225,647.73 = 90,628.02/x
  3. Step 3: Cross multiply
    150,632.64x = 225,647.73 × 90,628.02
  4. Step 4: Simplify right side
    150,632.64x = 20,450,006,987.39
  5. Step 5: Solve for x
    x = 20,450,006,987.39/150,632.64
  6. Step 6: Final answer
    x = 135,760.80

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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.