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Finding the Fourth Proportional to 111,007.40, 166,073.70 and 96,378.80

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Solution

The fourth proportional to 111,007.40, 166,073.70 and 96,378.80 is: 144,188.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,007.40 : 166,073.70 = 96,378.80 : x
  2. Step 2: Convert to fraction form
    111,007.40/166,073.70 = 96,378.80/x
  3. Step 3: Cross multiply
    111,007.40x = 166,073.70 × 96,378.80
  4. Step 4: Simplify right side
    111,007.40x = 16,005,983,917.56
  5. Step 5: Solve for x
    x = 16,005,983,917.56/111,007.40
  6. Step 6: Final answer
    x = 144,188.44

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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.