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Finding the Fourth Proportional to 117,714.80, 176,377.80 and 100,218.80

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Solution

The fourth proportional to 117,714.80, 176,377.80 and 100,218.80 is: 150,162.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,714.80 : 176,377.80 = 100,218.80 : x
  2. Step 2: Convert to fraction form
    117,714.80/176,377.80 = 100,218.80/x
  3. Step 3: Cross multiply
    117,714.80x = 176,377.80 × 100,218.80
  4. Step 4: Simplify right side
    117,714.80x = 17,676,371,462.64
  5. Step 5: Solve for x
    x = 17,676,371,462.64/117,714.80
  6. Step 6: Final answer
    x = 150,162.69

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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.