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Finding the Fourth Proportional to 150,148.80, 225,093.60 and 76,276.80

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Solution

The fourth proportional to 150,148.80, 225,093.60 and 76,276.80 is: 114,349.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,148.80 : 225,093.60 = 76,276.80 : x
  2. Step 2: Convert to fraction form
    150,148.80/225,093.60 = 76,276.80/x
  3. Step 3: Cross multiply
    150,148.80x = 225,093.60 × 76,276.80
  4. Step 4: Simplify right side
    150,148.80x = 17,169,419,508.48
  5. Step 5: Solve for x
    x = 17,169,419,508.48/150,148.80
  6. Step 6: Final answer
    x = 114,349.36

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1.5x scale

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.