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Finding the Fourth Proportional to 216,633.81, 324,957.38 and 58,865.61

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Solution

The fourth proportional to 216,633.81, 324,957.38 and 58,865.61 is: 88,300.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,633.81 : 324,957.38 = 58,865.61 : x
  2. Step 2: Convert to fraction form
    216,633.81/324,957.38 = 58,865.61/x
  3. Step 3: Cross multiply
    216,633.81x = 324,957.38 × 58,865.61
  4. Step 4: Simplify right side
    216,633.81x = 19,128,814,103.37
  5. Step 5: Solve for x
    x = 19,128,814,103.37/216,633.81
  6. Step 6: Final answer
    x = 88,300.22

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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.