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Finding the Fourth Proportional to 255,817.94, 383,562.84 and 106,161.53

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Solution

The fourth proportional to 255,817.94, 383,562.84 and 106,161.53 is: 159,174.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,817.94 : 383,562.84 = 106,161.53 : x
  2. Step 2: Convert to fraction form
    255,817.94/383,562.84 = 106,161.53/x
  3. Step 3: Cross multiply
    255,817.94x = 383,562.84 × 106,161.53
  4. Step 4: Simplify right side
    255,817.94x = 40,719,617,945.55
  5. Step 5: Solve for x
    x = 40,719,617,945.55/255,817.94
  6. Step 6: Final answer
    x = 159,174.21

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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.