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Finding the Fourth Proportional to 111,580.61, 167,391.36 and 36,722.03

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Solution

The fourth proportional to 111,580.61, 167,391.36 and 36,722.03 is: 55,089.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,580.61 : 167,391.36 = 36,722.03 : x
  2. Step 2: Convert to fraction form
    111,580.61/167,391.36 = 36,722.03/x
  3. Step 3: Cross multiply
    111,580.61x = 167,391.36 × 36,722.03
  4. Step 4: Simplify right side
    111,580.61x = 6,146,949,706.70
  5. Step 5: Solve for x
    x = 6,146,949,706.70/111,580.61
  6. Step 6: Final answer
    x = 55,089.77

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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.