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Finding the Fourth Proportional to 86,592.94, 119,487.69 and 48,354.61

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Solution

The fourth proportional to 86,592.94, 119,487.69 and 48,354.61 is: 66,723.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,592.94 : 119,487.69 = 48,354.61 : x
  2. Step 2: Convert to fraction form
    86,592.94/119,487.69 = 48,354.61/x
  3. Step 3: Cross multiply
    86,592.94x = 119,487.69 × 48,354.61
  4. Step 4: Simplify right side
    86,592.94x = 5,777,780,611.04
  5. Step 5: Solve for x
    x = 5,777,780,611.04/86,592.94
  6. Step 6: Final answer
    x = 66,723.46

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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.