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Finding the Fourth Proportional to 132,635.15, 198,885.14 and 65,171.67

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Solution

The fourth proportional to 132,635.15, 198,885.14 and 65,171.67 is: 97,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,635.15 : 198,885.14 = 65,171.67 : x
  2. Step 2: Convert to fraction form
    132,635.15/198,885.14 = 65,171.67/x
  3. Step 3: Cross multiply
    132,635.15x = 198,885.14 × 65,171.67
  4. Step 4: Simplify right side
    132,635.15x = 12,961,677,003.43
  5. Step 5: Solve for x
    x = 12,961,677,003.43/132,635.15
  6. Step 6: Final answer
    x = 97,724.30

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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.