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Finding the Fourth Proportional to 365,861.60, 548,949.44 and 141,379.72

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Solution

The fourth proportional to 365,861.60, 548,949.44 and 141,379.72 is: 212,130.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,861.60 : 548,949.44 = 141,379.72 : x
  2. Step 2: Convert to fraction form
    365,861.60/548,949.44 = 141,379.72/x
  3. Step 3: Cross multiply
    365,861.60x = 548,949.44 × 141,379.72
  4. Step 4: Simplify right side
    365,861.60x = 77,610,318,121.36
  5. Step 5: Solve for x
    x = 77,610,318,121.36/365,861.60
  6. Step 6: Final answer
    x = 212,130.26

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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.