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Finding the Fourth Proportional to 109,767.70, 151,482.42 and 62,020.09

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Solution

The fourth proportional to 109,767.70, 151,482.42 and 62,020.09 is: 85,589.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,767.70 : 151,482.42 = 62,020.09 : x
  2. Step 2: Convert to fraction form
    109,767.70/151,482.42 = 62,020.09/x
  3. Step 3: Cross multiply
    109,767.70x = 151,482.42 × 62,020.09
  4. Step 4: Simplify right side
    109,767.70x = 9,394,952,254.31
  5. Step 5: Solve for x
    x = 9,394,952,254.31/109,767.70
  6. Step 6: Final answer
    x = 85,589.41

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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.