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Finding the Fourth Proportional to 114,861.70, 172,221.99 and 44,659.18

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Solution

The fourth proportional to 114,861.70, 172,221.99 and 44,659.18 is: 66,961.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,861.70 : 172,221.99 = 44,659.18 : x
  2. Step 2: Convert to fraction form
    114,861.70/172,221.99 = 44,659.18/x
  3. Step 3: Cross multiply
    114,861.70x = 172,221.99 × 44,659.18
  4. Step 4: Simplify right side
    114,861.70x = 7,691,292,851.37
  5. Step 5: Solve for x
    x = 7,691,292,851.37/114,861.70
  6. Step 6: Final answer
    x = 66,961.34

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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.