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Finding the Fourth Proportional to 192,563.98, 288,775.18 and 66,168.34

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Solution

The fourth proportional to 192,563.98, 288,775.18 and 66,168.34 is: 99,228.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,563.98 : 288,775.18 = 66,168.34 : x
  2. Step 2: Convert to fraction form
    192,563.98/288,775.18 = 66,168.34/x
  3. Step 3: Cross multiply
    192,563.98x = 288,775.18 × 66,168.34
  4. Step 4: Simplify right side
    192,563.98x = 19,107,774,906.74
  5. Step 5: Solve for x
    x = 19,107,774,906.74/192,563.98
  6. Step 6: Final answer
    x = 99,228.19

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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.