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Finding the Fourth Proportional to 111,913.40, 167,870.10 and 94,198.70

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Solution

The fourth proportional to 111,913.40, 167,870.10 and 94,198.70 is: 141,298.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,913.40 : 167,870.10 = 94,198.70 : x
  2. Step 2: Convert to fraction form
    111,913.40/167,870.10 = 94,198.70/x
  3. Step 3: Cross multiply
    111,913.40x = 167,870.10 × 94,198.70
  4. Step 4: Simplify right side
    111,913.40x = 15,813,145,188.87
  5. Step 5: Solve for x
    x = 15,813,145,188.87/111,913.40
  6. Step 6: Final answer
    x = 141,298.05

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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.