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Finding the Fourth Proportional to 111,630.35, 166,722.98 and 101,079.29

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Solution

The fourth proportional to 111,630.35, 166,722.98 and 101,079.29 is: 150,964.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,630.35 : 166,722.98 = 101,079.29 : x
  2. Step 2: Convert to fraction form
    111,630.35/166,722.98 = 101,079.29/x
  3. Step 3: Cross multiply
    111,630.35x = 166,722.98 × 101,079.29
  4. Step 4: Simplify right side
    111,630.35x = 16,852,239,106.07
  5. Step 5: Solve for x
    x = 16,852,239,106.07/111,630.35
  6. Step 6: Final answer
    x = 150,964.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.