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Finding the Fourth Proportional to 111,913.20, 167,821.20 and 37,004.40

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Solution

The fourth proportional to 111,913.20, 167,821.20 and 37,004.40 is: 55,490.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,913.20 : 167,821.20 = 37,004.40 : x
  2. Step 2: Convert to fraction form
    111,913.20/167,821.20 = 37,004.40/x
  3. Step 3: Cross multiply
    111,913.20x = 167,821.20 × 37,004.40
  4. Step 4: Simplify right side
    111,913.20x = 6,210,122,813.28
  5. Step 5: Solve for x
    x = 6,210,122,813.28/111,913.20
  6. Step 6: Final answer
    x = 55,490.53

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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.