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Finding the Fourth Proportional to 100,459.54, 150,690.48 and 25,579.60

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Solution

The fourth proportional to 100,459.54, 150,690.48 and 25,579.60 is: 38,369.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,459.54 : 150,690.48 = 25,579.60 : x
  2. Step 2: Convert to fraction form
    100,459.54/150,690.48 = 25,579.60/x
  3. Step 3: Cross multiply
    100,459.54x = 150,690.48 × 25,579.60
  4. Step 4: Simplify right side
    100,459.54x = 3,854,601,729.56
  5. Step 5: Solve for x
    x = 3,854,601,729.56/100,459.54
  6. Step 6: Final answer
    x = 38,369.69

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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.