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Finding the Fourth Proportional to 216,409.92, 324,602.73 and 58,626.78

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Solution

The fourth proportional to 216,409.92, 324,602.73 and 58,626.78 is: 87,936.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,409.92 : 324,602.73 = 58,626.78 : x
  2. Step 2: Convert to fraction form
    216,409.92/324,602.73 = 58,626.78/x
  3. Step 3: Cross multiply
    216,409.92x = 324,602.73 × 58,626.78
  4. Step 4: Simplify right side
    216,409.92x = 19,030,412,839.11
  5. Step 5: Solve for x
    x = 19,030,412,839.11/216,409.92
  6. Step 6: Final answer
    x = 87,936.88

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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.