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Finding the Fourth Proportional to 111,937.70, 167,905.53 and 45,362

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Solution

The fourth proportional to 111,937.70, 167,905.53 and 45,362 is: 68,042.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,937.70 : 167,905.53 = 45,362 : x
  2. Step 2: Convert to fraction form
    111,937.70/167,905.53 = 45,362/x
  3. Step 3: Cross multiply
    111,937.70x = 167,905.53 × 45,362
  4. Step 4: Simplify right side
    111,937.70x = 7,616,530,651.86
  5. Step 5: Solve for x
    x = 7,616,530,651.86/111,937.70
  6. Step 6: Final answer
    x = 68,042.59

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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.