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Finding the Fourth Proportional to 111,936.40, 167,904.60 and 98,814.40

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Solution

The fourth proportional to 111,936.40, 167,904.60 and 98,814.40 is: 148,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,936.40 : 167,904.60 = 98,814.40 : x
  2. Step 2: Convert to fraction form
    111,936.40/167,904.60 = 98,814.40/x
  3. Step 3: Cross multiply
    111,936.40x = 167,904.60 × 98,814.40
  4. Step 4: Simplify right side
    111,936.40x = 16,591,392,306.24
  5. Step 5: Solve for x
    x = 16,591,392,306.24/111,936.40
  6. Step 6: Final answer
    x = 148,221.60

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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.