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Finding the Fourth Proportional to 356,398.38, 534,677.38 and 119,734.62

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Solution

The fourth proportional to 356,398.38, 534,677.38 and 119,734.62 is: 179,628.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,398.38 : 534,677.38 = 119,734.62 : x
  2. Step 2: Convert to fraction form
    356,398.38/534,677.38 = 119,734.62/x
  3. Step 3: Cross multiply
    356,398.38x = 534,677.38 × 119,734.62
  4. Step 4: Simplify right side
    356,398.38x = 64,019,392,916.90
  5. Step 5: Solve for x
    x = 64,019,392,916.90/356,398.38
  6. Step 6: Final answer
    x = 179,628.74

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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.