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Finding the Fourth Proportional to 117,796.70, 176,628.12 and 80,402.04

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Solution

The fourth proportional to 117,796.70, 176,628.12 and 80,402.04 is: 120,557.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,796.70 : 176,628.12 = 80,402.04 : x
  2. Step 2: Convert to fraction form
    117,796.70/176,628.12 = 80,402.04/x
  3. Step 3: Cross multiply
    117,796.70x = 176,628.12 × 80,402.04
  4. Step 4: Simplify right side
    117,796.70x = 14,201,261,169.36
  5. Step 5: Solve for x
    x = 14,201,261,169.36/117,796.70
  6. Step 6: Final answer
    x = 120,557.38

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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.