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Finding the Fourth Proportional to 86,605.92, 119,504.52 and 48,360.96

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Solution

The fourth proportional to 86,605.92, 119,504.52 and 48,360.96 is: 66,731.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,605.92 : 119,504.52 = 48,360.96 : x
  2. Step 2: Convert to fraction form
    86,605.92/119,504.52 = 48,360.96/x
  3. Step 3: Cross multiply
    86,605.92x = 119,504.52 × 48,360.96
  4. Step 4: Simplify right side
    86,605.92x = 5,779,353,311.54
  5. Step 5: Solve for x
    x = 5,779,353,311.54/86,605.92
  6. Step 6: Final answer
    x = 66,731.62

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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.