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Finding the Fourth Proportional to 132,347.30, 198,478.29 and 43,579.67

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Solution

The fourth proportional to 132,347.30, 198,478.29 and 43,579.67 is: 65,355.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,347.30 : 198,478.29 = 43,579.67 : x
  2. Step 2: Convert to fraction form
    132,347.30/198,478.29 = 43,579.67/x
  3. Step 3: Cross multiply
    132,347.30x = 198,478.29 × 43,579.67
  4. Step 4: Simplify right side
    132,347.30x = 8,649,618,380.36
  5. Step 5: Solve for x
    x = 8,649,618,380.36/132,347.30
  6. Step 6: Final answer
    x = 65,355.46

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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.