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Finding the Fourth Proportional to 111,846.60, 154,297.46 and 66,498.84

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Solution

The fourth proportional to 111,846.60, 154,297.46 and 66,498.84 is: 91,738.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,846.60 : 154,297.46 = 66,498.84 : x
  2. Step 2: Convert to fraction form
    111,846.60/154,297.46 = 66,498.84/x
  3. Step 3: Cross multiply
    111,846.60x = 154,297.46 × 66,498.84
  4. Step 4: Simplify right side
    111,846.60x = 10,260,602,104.95
  5. Step 5: Solve for x
    x = 10,260,602,104.95/111,846.60
  6. Step 6: Final answer
    x = 91,738.17

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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.