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Finding the Fourth Proportional to 192,606.12, 288,941.49 and 66,241.26

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Solution

The fourth proportional to 192,606.12, 288,941.49 and 66,241.26 is: 99,373.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,606.12 : 288,941.49 = 66,241.26 : x
  2. Step 2: Convert to fraction form
    192,606.12/288,941.49 = 66,241.26/x
  3. Step 3: Cross multiply
    192,606.12x = 288,941.49 × 66,241.26
  4. Step 4: Simplify right side
    192,606.12x = 19,139,848,363.88
  5. Step 5: Solve for x
    x = 19,139,848,363.88/192,606.12
  6. Step 6: Final answer
    x = 99,373.00

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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.