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Finding the Fourth Proportional to 111,626.40, 167,828.40 and 94,519.20

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Solution

The fourth proportional to 111,626.40, 167,828.40 and 94,519.20 is: 142,108.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,626.40 : 167,828.40 = 94,519.20 : x
  2. Step 2: Convert to fraction form
    111,626.40/167,828.40 = 94,519.20/x
  3. Step 3: Cross multiply
    111,626.40x = 167,828.40 × 94,519.20
  4. Step 4: Simplify right side
    111,626.40x = 15,863,006,105.28
  5. Step 5: Solve for x
    x = 15,863,006,105.28/111,626.40
  6. Step 6: Final answer
    x = 142,108.01

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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.