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Finding the Fourth Proportional to 88,766.20, 133,035.90 and 36,116.20

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Solution

The fourth proportional to 88,766.20, 133,035.90 and 36,116.20 is: 54,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,766.20 : 133,035.90 = 36,116.20 : x
  2. Step 2: Convert to fraction form
    88,766.20/133,035.90 = 36,116.20/x
  3. Step 3: Cross multiply
    88,766.20x = 133,035.90 × 36,116.20
  4. Step 4: Simplify right side
    88,766.20x = 4,804,751,171.58
  5. Step 5: Solve for x
    x = 4,804,751,171.58/88,766.20
  6. Step 6: Final answer
    x = 54,128.16

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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.