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Finding the Fourth Proportional to 192,592.49, 288,895.11 and 66,231.47

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Solution

The fourth proportional to 192,592.49, 288,895.11 and 66,231.47 is: 99,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,592.49 : 288,895.11 = 66,231.47 : x
  2. Step 2: Convert to fraction form
    192,592.49/288,895.11 = 66,231.47/x
  3. Step 3: Cross multiply
    192,592.49x = 288,895.11 × 66,231.47
  4. Step 4: Simplify right side
    192,592.49x = 19,133,947,811.11
  5. Step 5: Solve for x
    x = 19,133,947,811.11/192,592.49
  6. Step 6: Final answer
    x = 99,349.40

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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.