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Finding the Fourth Proportional to 111,753, 154,251.95 and 66,463.07

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Solution

The fourth proportional to 111,753, 154,251.95 and 66,463.07 is: 91,738.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,753 : 154,251.95 = 66,463.07 : x
  2. Step 2: Convert to fraction form
    111,753/154,251.95 = 66,463.07/x
  3. Step 3: Cross multiply
    111,753x = 154,251.95 × 66,463.07
  4. Step 4: Simplify right side
    111,753x = 10,252,057,046.91
  5. Step 5: Solve for x
    x = 10,252,057,046.91/111,753
  6. Step 6: Final answer
    x = 91,738.54

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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.