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Finding the Fourth Proportional to 240,431.43, 360,679.95 and 100,157.25

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Solution

The fourth proportional to 240,431.43, 360,679.95 and 100,157.25 is: 150,249.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,431.43 : 360,679.95 = 100,157.25 : x
  2. Step 2: Convert to fraction form
    240,431.43/360,679.95 = 100,157.25/x
  3. Step 3: Cross multiply
    240,431.43x = 360,679.95 × 100,157.25
  4. Step 4: Simplify right side
    240,431.43x = 36,124,711,922.14
  5. Step 5: Solve for x
    x = 36,124,711,922.14/240,431.43
  6. Step 6: Final answer
    x = 150,249.54

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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.