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Finding the Fourth Proportional to 216,231.45, 324,346.41 and 58,459.88

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Solution

The fourth proportional to 216,231.45, 324,346.41 and 58,459.88 is: 87,689.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,231.45 : 324,346.41 = 58,459.88 : x
  2. Step 2: Convert to fraction form
    216,231.45/324,346.41 = 58,459.88/x
  3. Step 3: Cross multiply
    216,231.45x = 324,346.41 × 58,459.88
  4. Step 4: Simplify right side
    216,231.45x = 18,961,250,585.30
  5. Step 5: Solve for x
    x = 18,961,250,585.30/216,231.45
  6. Step 6: Final answer
    x = 87,689.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.