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Finding the Fourth Proportional to 86,873.58, 119,896.83 and 48,647.68

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Solution

The fourth proportional to 86,873.58, 119,896.83 and 48,647.68 is: 67,140.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,873.58 : 119,896.83 = 48,647.68 : x
  2. Step 2: Convert to fraction form
    86,873.58/119,896.83 = 48,647.68/x
  3. Step 3: Cross multiply
    86,873.58x = 119,896.83 × 48,647.68
  4. Step 4: Simplify right side
    86,873.58x = 5,832,702,618.85
  5. Step 5: Solve for x
    x = 5,832,702,618.85/86,873.58
  6. Step 6: Final answer
    x = 67,140.12

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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.