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Finding the Fourth Proportional to 150,679.48, 207,923.42 and 90,249.08

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Solution

The fourth proportional to 150,679.48, 207,923.42 and 90,249.08 is: 124,535.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,679.48 : 207,923.42 = 90,249.08 : x
  2. Step 2: Convert to fraction form
    150,679.48/207,923.42 = 90,249.08/x
  3. Step 3: Cross multiply
    150,679.48x = 207,923.42 × 90,249.08
  4. Step 4: Simplify right side
    150,679.48x = 18,764,897,365.45
  5. Step 5: Solve for x
    x = 18,764,897,365.45/150,679.48
  6. Step 6: Final answer
    x = 124,535.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.