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Finding the Fourth Proportional to 89,348.80, 134,023.20 and 36,731.20

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Solution

The fourth proportional to 89,348.80, 134,023.20 and 36,731.20 is: 55,096.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,348.80 : 134,023.20 = 36,731.20 : x
  2. Step 2: Convert to fraction form
    89,348.80/134,023.20 = 36,731.20/x
  3. Step 3: Cross multiply
    89,348.80x = 134,023.20 × 36,731.20
  4. Step 4: Simplify right side
    89,348.80x = 4,922,832,963.84
  5. Step 5: Solve for x
    x = 4,922,832,963.84/89,348.80
  6. Step 6: Final answer
    x = 55,096.80

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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.