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Finding the Fourth Proportional to 194,720.73, 268,714.73 and 107,505.90

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Solution

The fourth proportional to 194,720.73, 268,714.73 and 107,505.90 is: 148,358.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,720.73 : 268,714.73 = 107,505.90 : x
  2. Step 2: Convert to fraction form
    194,720.73/268,714.73 = 107,505.90/x
  3. Step 3: Cross multiply
    194,720.73x = 268,714.73 × 107,505.90
  4. Step 4: Simplify right side
    194,720.73x = 28,888,418,891.91
  5. Step 5: Solve for x
    x = 28,888,418,891.91/194,720.73
  6. Step 6: Final answer
    x = 148,358.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.