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Finding the Fourth Proportional to 84,305.80, 126,467.20 and 27,377.32

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Solution

The fourth proportional to 84,305.80, 126,467.20 and 27,377.32 is: 41,068.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,305.80 : 126,467.20 = 27,377.32 : x
  2. Step 2: Convert to fraction form
    84,305.80/126,467.20 = 27,377.32/x
  3. Step 3: Cross multiply
    84,305.80x = 126,467.20 × 27,377.32
  4. Step 4: Simplify right side
    84,305.80x = 3,462,333,003.90
  5. Step 5: Solve for x
    x = 3,462,333,003.90/84,305.80
  6. Step 6: Final answer
    x = 41,068.74

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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.