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Finding the Fourth Proportional to 111,936.90, 167,905.35 and 98,814.90

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Solution

The fourth proportional to 111,936.90, 167,905.35 and 98,814.90 is: 148,222.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,936.90 : 167,905.35 = 98,814.90 : x
  2. Step 2: Convert to fraction form
    111,936.90/167,905.35 = 98,814.90/x
  3. Step 3: Cross multiply
    111,936.90x = 167,905.35 × 98,814.90
  4. Step 4: Simplify right side
    111,936.90x = 16,591,550,369.72
  5. Step 5: Solve for x
    x = 16,591,550,369.72/111,936.90
  6. Step 6: Final answer
    x = 148,222.35

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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.