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Finding the Fourth Proportional to 86,539.63, 119,424.50 and 48,813.61

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Solution

The fourth proportional to 86,539.63, 119,424.50 and 48,813.61 is: 67,362.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,539.63 : 119,424.50 = 48,813.61 : x
  2. Step 2: Convert to fraction form
    86,539.63/119,424.50 = 48,813.61/x
  3. Step 3: Cross multiply
    86,539.63x = 119,424.50 × 48,813.61
  4. Step 4: Simplify right side
    86,539.63x = 5,829,540,723.38
  5. Step 5: Solve for x
    x = 5,829,540,723.38/86,539.63
  6. Step 6: Final answer
    x = 67,362.67

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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.