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Finding the Fourth Proportional to 192,409.27, 288,656.51 and 66,046.69

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Solution

The fourth proportional to 192,409.27, 288,656.51 and 66,046.69 is: 99,084.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,409.27 : 288,656.51 = 66,046.69 : x
  2. Step 2: Convert to fraction form
    192,409.27/288,656.51 = 66,046.69/x
  3. Step 3: Cross multiply
    192,409.27x = 288,656.51 × 66,046.69
  4. Step 4: Simplify right side
    192,409.27x = 19,064,807,032.45
  5. Step 5: Solve for x
    x = 19,064,807,032.45/192,409.27
  6. Step 6: Final answer
    x = 99,084.66

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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.