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Finding the Fourth Proportional to 71,325.83, 106,948.73 and 48,861.90

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Solution

The fourth proportional to 71,325.83, 106,948.73 and 48,861.90 is: 73,265.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,325.83 : 106,948.73 = 48,861.90 : x
  2. Step 2: Convert to fraction form
    71,325.83/106,948.73 = 48,861.90/x
  3. Step 3: Cross multiply
    71,325.83x = 106,948.73 × 48,861.90
  4. Step 4: Simplify right side
    71,325.83x = 5,225,717,906.08
  5. Step 5: Solve for x
    x = 5,225,717,906.08/71,325.83
  6. Step 6: Final answer
    x = 73,265.44

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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.