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Finding the Fourth Proportional to 71,865.28, 99,197.12 and 46,372.44

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Solution

The fourth proportional to 71,865.28, 99,197.12 and 46,372.44 is: 64,008.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,865.28 : 99,197.12 = 46,372.44 : x
  2. Step 2: Convert to fraction form
    71,865.28/99,197.12 = 46,372.44/x
  3. Step 3: Cross multiply
    71,865.28x = 99,197.12 × 46,372.44
  4. Step 4: Simplify right side
    71,865.28x = 4,600,012,495.37
  5. Step 5: Solve for x
    x = 4,600,012,495.37/71,865.28
  6. Step 6: Final answer
    x = 64,008.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.