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Finding the Fourth Proportional to 424,716.86, 636,631.04 and 158,361.50

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Solution

The fourth proportional to 424,716.86, 636,631.04 and 158,361.50 is: 237,376.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,716.86 : 636,631.04 = 158,361.50 : x
  2. Step 2: Convert to fraction form
    424,716.86/636,631.04 = 158,361.50/x
  3. Step 3: Cross multiply
    424,716.86x = 636,631.04 × 158,361.50
  4. Step 4: Simplify right side
    424,716.86x = 100,817,846,440.96
  5. Step 5: Solve for x
    x = 100,817,846,440.96/424,716.86
  6. Step 6: Final answer
    x = 237,376.61

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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.