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Finding the Fourth Proportional to 424,311.94, 636,467.86 and 124,792.52

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Solution

The fourth proportional to 424,311.94, 636,467.86 and 124,792.52 is: 187,188.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,311.94 : 636,467.86 = 124,792.52 : x
  2. Step 2: Convert to fraction form
    424,311.94/636,467.86 = 124,792.52/x
  3. Step 3: Cross multiply
    424,311.94x = 636,467.86 × 124,792.52
  4. Step 4: Simplify right side
    424,311.94x = 79,426,425,122.06
  5. Step 5: Solve for x
    x = 79,426,425,122.06/424,311.94
  6. Step 6: Final answer
    x = 187,188.76

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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.