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Finding the Fourth Proportional to 619,126.29, 928,690.62 and 169,853.31

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Solution

The fourth proportional to 619,126.29, 928,690.62 and 169,853.31 is: 254,780.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,126.29 : 928,690.62 = 169,853.31 : x
  2. Step 2: Convert to fraction form
    619,126.29/928,690.62 = 169,853.31/x
  3. Step 3: Cross multiply
    619,126.29x = 928,690.62 × 169,853.31
  4. Step 4: Simplify right side
    619,126.29x = 157,741,175,772.95
  5. Step 5: Solve for x
    x = 157,741,175,772.95/619,126.29
  6. Step 6: Final answer
    x = 254,780.29

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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.