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Finding the Fourth Proportional to 351,398.40, 527,196.06 and 141,183.96

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Solution

The fourth proportional to 351,398.40, 527,196.06 and 141,183.96 is: 211,815.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,398.40 : 527,196.06 = 141,183.96 : x
  2. Step 2: Convert to fraction form
    351,398.40/527,196.06 = 141,183.96/x
  3. Step 3: Cross multiply
    351,398.40x = 527,196.06 × 141,183.96
  4. Step 4: Simplify right side
    351,398.40x = 74,431,627,447.20
  5. Step 5: Solve for x
    x = 74,431,627,447.20/351,398.40
  6. Step 6: Final answer
    x = 211,815.50

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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.