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Finding the Fourth Proportional to 376,639.86, 564,891.63 and 151,990.90

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Solution

The fourth proportional to 376,639.86, 564,891.63 and 151,990.90 is: 227,958.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,639.86 : 564,891.63 = 151,990.90 : x
  2. Step 2: Convert to fraction form
    376,639.86/564,891.63 = 151,990.90/x
  3. Step 3: Cross multiply
    376,639.86x = 564,891.63 × 151,990.90
  4. Step 4: Simplify right side
    376,639.86x = 85,858,387,246.17
  5. Step 5: Solve for x
    x = 85,858,387,246.17/376,639.86
  6. Step 6: Final answer
    x = 227,958.84

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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.