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Finding the Fourth Proportional to 111,937.10, 167,905.65 and 37,068.80

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Solution

The fourth proportional to 111,937.10, 167,905.65 and 37,068.80 is: 55,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,937.10 : 167,905.65 = 37,068.80 : x
  2. Step 2: Convert to fraction form
    111,937.10/167,905.65 = 37,068.80/x
  3. Step 3: Cross multiply
    111,937.10x = 167,905.65 × 37,068.80
  4. Step 4: Simplify right side
    111,937.10x = 6,224,060,958.72
  5. Step 5: Solve for x
    x = 6,224,060,958.72/111,937.10
  6. Step 6: Final answer
    x = 55,603.20

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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.