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Finding the Fourth Proportional to 609,186.14, 913,809.45 and 159,908.30

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Solution

The fourth proportional to 609,186.14, 913,809.45 and 159,908.30 is: 239,870.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,186.14 : 913,809.45 = 159,908.30 : x
  2. Step 2: Convert to fraction form
    609,186.14/913,809.45 = 159,908.30/x
  3. Step 3: Cross multiply
    609,186.14x = 913,809.45 × 159,908.30
  4. Step 4: Simplify right side
    609,186.14x = 146,125,715,673.44
  5. Step 5: Solve for x
    x = 146,125,715,673.44/609,186.14
  6. Step 6: Final answer
    x = 239,870.39

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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.