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Finding the Fourth Proportional to 55,175.58, 82,714.15 and 45,891.76

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Solution

The fourth proportional to 55,175.58, 82,714.15 and 45,891.76 is: 68,796.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,175.58 : 82,714.15 = 45,891.76 : x
  2. Step 2: Convert to fraction form
    55,175.58/82,714.15 = 45,891.76/x
  3. Step 3: Cross multiply
    55,175.58x = 82,714.15 × 45,891.76
  4. Step 4: Simplify right side
    55,175.58x = 3,795,897,920.40
  5. Step 5: Solve for x
    x = 3,795,897,920.40/55,175.58
  6. Step 6: Final answer
    x = 68,796.70

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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.