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Finding the Fourth Proportional to 89,080.93, 133,830.42 and 84,037.06

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Solution

The fourth proportional to 89,080.93, 133,830.42 and 84,037.06 is: 126,252.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,080.93 : 133,830.42 = 84,037.06 : x
  2. Step 2: Convert to fraction form
    89,080.93/133,830.42 = 84,037.06/x
  3. Step 3: Cross multiply
    89,080.93x = 133,830.42 × 84,037.06
  4. Step 4: Simplify right side
    89,080.93x = 11,246,715,035.37
  5. Step 5: Solve for x
    x = 11,246,715,035.37/89,080.93
  6. Step 6: Final answer
    x = 126,252.78

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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.