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Finding the Fourth Proportional to 331,151.72, 496,732.12 and 94,494.32

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Solution

The fourth proportional to 331,151.72, 496,732.12 and 94,494.32 is: 141,742.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,151.72 : 496,732.12 = 94,494.32 : x
  2. Step 2: Convert to fraction form
    331,151.72/496,732.12 = 94,494.32/x
  3. Step 3: Cross multiply
    331,151.72x = 496,732.12 × 94,494.32
  4. Step 4: Simplify right side
    331,151.72x = 46,938,363,901.56
  5. Step 5: Solve for x
    x = 46,938,363,901.56/331,151.72
  6. Step 6: Final answer
    x = 141,742.78

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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.