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Finding the Fourth Proportional to 103,684.70, 155,527.05 and 41,399.90

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Solution

The fourth proportional to 103,684.70, 155,527.05 and 41,399.90 is: 62,099.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,684.70 : 155,527.05 = 41,399.90 : x
  2. Step 2: Convert to fraction form
    103,684.70/155,527.05 = 41,399.90/x
  3. Step 3: Cross multiply
    103,684.70x = 155,527.05 × 41,399.90
  4. Step 4: Simplify right side
    103,684.70x = 6,438,804,317.30
  5. Step 5: Solve for x
    x = 6,438,804,317.30/103,684.70
  6. Step 6: Final answer
    x = 62,099.85

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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.