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Finding the Fourth Proportional to 140,959.44, 194,527.73 and 79,700.71

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Solution

The fourth proportional to 140,959.44, 194,527.73 and 79,700.71 is: 109,989.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,959.44 : 194,527.73 = 79,700.71 : x
  2. Step 2: Convert to fraction form
    140,959.44/194,527.73 = 79,700.71/x
  3. Step 3: Cross multiply
    140,959.44x = 194,527.73 × 79,700.71
  4. Step 4: Simplify right side
    140,959.44x = 15,503,997,825.04
  5. Step 5: Solve for x
    x = 15,503,997,825.04/140,959.44
  6. Step 6: Final answer
    x = 109,989.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.