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Finding the Fourth Proportional to 89,080.84, 133,621.26 and 36,480.76

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Solution

The fourth proportional to 89,080.84, 133,621.26 and 36,480.76 is: 54,721.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,080.84 : 133,621.26 = 36,480.76 : x
  2. Step 2: Convert to fraction form
    89,080.84/133,621.26 = 36,480.76/x
  3. Step 3: Cross multiply
    89,080.84x = 133,621.26 × 36,480.76
  4. Step 4: Simplify right side
    89,080.84x = 4,874,605,116.96
  5. Step 5: Solve for x
    x = 4,874,605,116.96/89,080.84
  6. Step 6: Final answer
    x = 54,721.14

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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.