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Finding the Fourth Proportional to 216,606.33, 324,840.36 and 74,417.31

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Solution

The fourth proportional to 216,606.33, 324,840.36 and 74,417.31 is: 111,602.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,606.33 : 324,840.36 = 74,417.31 : x
  2. Step 2: Convert to fraction form
    216,606.33/324,840.36 = 74,417.31/x
  3. Step 3: Cross multiply
    216,606.33x = 324,840.36 × 74,417.31
  4. Step 4: Simplify right side
    216,606.33x = 24,173,745,770.63
  5. Step 5: Solve for x
    x = 24,173,745,770.63/216,606.33
  6. Step 6: Final answer
    x = 111,602.21

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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.