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Finding the Fourth Proportional to 117,957.27, 176,811.26 and 80,424.30

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Solution

The fourth proportional to 117,957.27, 176,811.26 and 80,424.30 is: 120,551.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,957.27 : 176,811.26 = 80,424.30 : x
  2. Step 2: Convert to fraction form
    117,957.27/176,811.26 = 80,424.30/x
  3. Step 3: Cross multiply
    117,957.27x = 176,811.26 × 80,424.30
  4. Step 4: Simplify right side
    117,957.27x = 14,219,921,817.62
  5. Step 5: Solve for x
    x = 14,219,921,817.62/117,957.27
  6. Step 6: Final answer
    x = 120,551.47

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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.