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Finding the Fourth Proportional to 133,492.70, 199,947.45 and 103,676.60

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Solution

The fourth proportional to 133,492.70, 199,947.45 and 103,676.60 is: 155,288.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,492.70 : 199,947.45 = 103,676.60 : x
  2. Step 2: Convert to fraction form
    133,492.70/199,947.45 = 103,676.60/x
  3. Step 3: Cross multiply
    133,492.70x = 199,947.45 × 103,676.60
  4. Step 4: Simplify right side
    133,492.70x = 20,729,871,794.67
  5. Step 5: Solve for x
    x = 20,729,871,794.67/133,492.70
  6. Step 6: Final answer
    x = 155,288.43

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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.