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Finding the Fourth Proportional to 454,800.69, 682,233.84 and 139,216.59

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Solution

The fourth proportional to 454,800.69, 682,233.84 and 139,216.59 is: 208,834.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,800.69 : 682,233.84 = 139,216.59 : x
  2. Step 2: Convert to fraction form
    454,800.69/682,233.84 = 139,216.59/x
  3. Step 3: Cross multiply
    454,800.69x = 682,233.84 × 139,216.59
  4. Step 4: Simplify right side
    454,800.69x = 94,978,268,787.41
  5. Step 5: Solve for x
    x = 94,978,268,787.41/454,800.69
  6. Step 6: Final answer
    x = 208,834.93

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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.