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Finding the Fourth Proportional to 129,654.95, 194,481.95 and 50,713.56

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Solution

The fourth proportional to 129,654.95, 194,481.95 and 50,713.56 is: 76,070.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,654.95 : 194,481.95 = 50,713.56 : x
  2. Step 2: Convert to fraction form
    129,654.95/194,481.95 = 50,713.56/x
  3. Step 3: Cross multiply
    129,654.95x = 194,481.95 × 50,713.56
  4. Step 4: Simplify right side
    129,654.95x = 9,862,871,786.67
  5. Step 5: Solve for x
    x = 9,862,871,786.67/129,654.95
  6. Step 6: Final answer
    x = 76,070.16

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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.