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Finding the Fourth Proportional to 150,871.72, 225,975.24 and 100,716.88

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Solution

The fourth proportional to 150,871.72, 225,975.24 and 100,716.88 is: 150,853.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,871.72 : 225,975.24 = 100,716.88 : x
  2. Step 2: Convert to fraction form
    150,871.72/225,975.24 = 100,716.88/x
  3. Step 3: Cross multiply
    150,871.72x = 225,975.24 × 100,716.88
  4. Step 4: Simplify right side
    150,871.72x = 22,759,521,130.05
  5. Step 5: Solve for x
    x = 22,759,521,130.05/150,871.72
  6. Step 6: Final answer
    x = 150,853.46

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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.