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Finding the Fourth Proportional to 323,766.74, 485,533.46 and 136,792.82

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Solution

The fourth proportional to 323,766.74, 485,533.46 and 136,792.82 is: 205,139.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,766.74 : 485,533.46 = 136,792.82 : x
  2. Step 2: Convert to fraction form
    323,766.74/485,533.46 = 136,792.82/x
  3. Step 3: Cross multiply
    323,766.74x = 485,533.46 × 136,792.82
  4. Step 4: Simplify right side
    323,766.74x = 66,417,491,197.76
  5. Step 5: Solve for x
    x = 66,417,491,197.76/323,766.74
  6. Step 6: Final answer
    x = 205,139.94

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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.