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Finding the Fourth Proportional to 216,174.50, 324,035.73 and 73,972.04

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Solution

The fourth proportional to 216,174.50, 324,035.73 and 73,972.04 is: 110,880.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,174.50 : 324,035.73 = 73,972.04 : x
  2. Step 2: Convert to fraction form
    216,174.50/324,035.73 = 73,972.04/x
  3. Step 3: Cross multiply
    216,174.50x = 324,035.73 × 73,972.04
  4. Step 4: Simplify right side
    216,174.50x = 23,969,583,980.99
  5. Step 5: Solve for x
    x = 23,969,583,980.99/216,174.50
  6. Step 6: Final answer
    x = 110,880.72

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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.