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Finding the Fourth Proportional to 101,672.22, 140,304.06 and 56,354.42

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Solution

The fourth proportional to 101,672.22, 140,304.06 and 56,354.42 is: 77,767.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,672.22 : 140,304.06 = 56,354.42 : x
  2. Step 2: Convert to fraction form
    101,672.22/140,304.06 = 56,354.42/x
  3. Step 3: Cross multiply
    101,672.22x = 140,304.06 × 56,354.42
  4. Step 4: Simplify right side
    101,672.22x = 7,906,752,941.65
  5. Step 5: Solve for x
    x = 7,906,752,941.65/101,672.22
  6. Step 6: Final answer
    x = 77,767.09

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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.