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Finding the Fourth Proportional to 216,634.31, 324,958.13 and 58,866.11

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Solution

The fourth proportional to 216,634.31, 324,958.13 and 58,866.11 is: 88,300.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,634.31 : 324,958.13 = 58,866.11 : x
  2. Step 2: Convert to fraction form
    216,634.31/324,958.13 = 58,866.11/x
  3. Step 3: Cross multiply
    216,634.31x = 324,958.13 × 58,866.11
  4. Step 4: Simplify right side
    216,634.31x = 19,129,020,731.64
  5. Step 5: Solve for x
    x = 19,129,020,731.64/216,634.31
  6. Step 6: Final answer
    x = 88,300.97

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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.