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Finding the Fourth Proportional to 111,747.36, 154,213.68 and 61,446.24

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Solution

The fourth proportional to 111,747.36, 154,213.68 and 61,446.24 is: 84,797.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,747.36 : 154,213.68 = 61,446.24 : x
  2. Step 2: Convert to fraction form
    111,747.36/154,213.68 = 61,446.24/x
  3. Step 3: Cross multiply
    111,747.36x = 154,213.68 × 61,446.24
  4. Step 4: Simplify right side
    111,747.36x = 9,475,850,792.56
  5. Step 5: Solve for x
    x = 9,475,850,792.56/111,747.36
  6. Step 6: Final answer
    x = 84,797.09

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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.