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Finding the Fourth Proportional to 88,908.80, 133,363.20 and 36,291.20

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Solution

The fourth proportional to 88,908.80, 133,363.20 and 36,291.20 is: 54,436.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,908.80 : 133,363.20 = 36,291.20 : x
  2. Step 2: Convert to fraction form
    88,908.80/133,363.20 = 36,291.20/x
  3. Step 3: Cross multiply
    88,908.80x = 133,363.20 × 36,291.20
  4. Step 4: Simplify right side
    88,908.80x = 4,839,910,563.84
  5. Step 5: Solve for x
    x = 4,839,910,563.84/88,908.80
  6. Step 6: Final answer
    x = 54,436.80

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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.