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Finding the Fourth Proportional to 99,183.78, 148,775.64 and 25,311.78

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Solution

The fourth proportional to 99,183.78, 148,775.64 and 25,311.78 is: 37,967.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,183.78 : 148,775.64 = 25,311.78 : x
  2. Step 2: Convert to fraction form
    99,183.78/148,775.64 = 25,311.78/x
  3. Step 3: Cross multiply
    99,183.78x = 148,775.64 × 25,311.78
  4. Step 4: Simplify right side
    99,183.78x = 3,765,776,269.04
  5. Step 5: Solve for x
    x = 3,765,776,269.04/99,183.78
  6. Step 6: Final answer
    x = 37,967.66

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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.