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Finding the Fourth Proportional to 126,490.70, 189,797.56 and 59,851.44

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Solution

The fourth proportional to 126,490.70, 189,797.56 and 59,851.44 is: 89,806.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,490.70 : 189,797.56 = 59,851.44 : x
  2. Step 2: Convert to fraction form
    126,490.70/189,797.56 = 59,851.44/x
  3. Step 3: Cross multiply
    126,490.70x = 189,797.56 × 59,851.44
  4. Step 4: Simplify right side
    126,490.70x = 11,359,657,274.49
  5. Step 5: Solve for x
    x = 11,359,657,274.49/126,490.70
  6. Step 6: Final answer
    x = 89,806.26

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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.