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Finding the Fourth Proportional to 71,895.54, 99,187.56 and 48,037.80

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Solution

The fourth proportional to 71,895.54, 99,187.56 and 48,037.80 is: 66,273.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,895.54 : 99,187.56 = 48,037.80 : x
  2. Step 2: Convert to fraction form
    71,895.54/99,187.56 = 48,037.80/x
  3. Step 3: Cross multiply
    71,895.54x = 99,187.56 × 48,037.80
  4. Step 4: Simplify right side
    71,895.54x = 4,764,752,169.77
  5. Step 5: Solve for x
    x = 4,764,752,169.77/71,895.54
  6. Step 6: Final answer
    x = 66,273.26

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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.