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Finding the Fourth Proportional to 117,729.80, 176,940.30 and 102,523.40

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Solution

The fourth proportional to 117,729.80, 176,940.30 and 102,523.40 is: 154,086.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,729.80 : 176,940.30 = 102,523.40 : x
  2. Step 2: Convert to fraction form
    117,729.80/176,940.30 = 102,523.40/x
  3. Step 3: Cross multiply
    117,729.80x = 176,940.30 × 102,523.40
  4. Step 4: Simplify right side
    117,729.80x = 18,140,521,153.02
  5. Step 5: Solve for x
    x = 18,140,521,153.02/117,729.80
  6. Step 6: Final answer
    x = 154,086.06

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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.