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Finding the Fourth Proportional to 117,959.40, 176,939.10 and 73,722.60

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Solution

The fourth proportional to 117,959.40, 176,939.10 and 73,722.60 is: 110,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,959.40 : 176,939.10 = 73,722.60 : x
  2. Step 2: Convert to fraction form
    117,959.40/176,939.10 = 73,722.60/x
  3. Step 3: Cross multiply
    117,959.40x = 176,939.10 × 73,722.60
  4. Step 4: Simplify right side
    117,959.40x = 13,044,410,493.66
  5. Step 5: Solve for x
    x = 13,044,410,493.66/117,959.40
  6. Step 6: Final answer
    x = 110,583.90

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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.