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Finding the Fourth Proportional to 216,243.45, 324,364.41 and 58,471.89

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Solution

The fourth proportional to 216,243.45, 324,364.41 and 58,471.89 is: 87,707.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,243.45 : 324,364.41 = 58,471.89 : x
  2. Step 2: Convert to fraction form
    216,243.45/324,364.41 = 58,471.89/x
  3. Step 3: Cross multiply
    216,243.45x = 324,364.41 × 58,471.89
  4. Step 4: Simplify right side
    216,243.45x = 18,966,200,101.43
  5. Step 5: Solve for x
    x = 18,966,200,101.43/216,243.45
  6. Step 6: Final answer
    x = 87,707.63

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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.