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Finding the Fourth Proportional to 132,376.80, 198,649.65 and 48,128.88

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Solution

The fourth proportional to 132,376.80, 198,649.65 and 48,128.88 is: 72,224.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,376.80 : 198,649.65 = 48,128.88 : x
  2. Step 2: Convert to fraction form
    132,376.80/198,649.65 = 48,128.88/x
  3. Step 3: Cross multiply
    132,376.80x = 198,649.65 × 48,128.88
  4. Step 4: Simplify right side
    132,376.80x = 9,560,785,166.89
  5. Step 5: Solve for x
    x = 9,560,785,166.89/132,376.80
  6. Step 6: Final answer
    x = 72,224.02

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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.