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Finding the Fourth Proportional to 216,412.42, 324,606.48 and 58,629.28

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Solution

The fourth proportional to 216,412.42, 324,606.48 and 58,629.28 is: 87,940.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,412.42 : 324,606.48 = 58,629.28 : x
  2. Step 2: Convert to fraction form
    216,412.42/324,606.48 = 58,629.28/x
  3. Step 3: Cross multiply
    216,412.42x = 324,606.48 × 58,629.28
  4. Step 4: Simplify right side
    216,412.42x = 19,031,444,205.73
  5. Step 5: Solve for x
    x = 19,031,444,205.73/216,412.42
  6. Step 6: Final answer
    x = 87,940.63

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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.