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Finding the Fourth Proportional to 192,406.77, 288,652.75 and 66,044.18

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Solution

The fourth proportional to 192,406.77, 288,652.75 and 66,044.18 is: 99,080.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,406.77 : 288,652.75 = 66,044.18 : x
  2. Step 2: Convert to fraction form
    192,406.77/288,652.75 = 66,044.18/x
  3. Step 3: Cross multiply
    192,406.77x = 288,652.75 × 66,044.18
  4. Step 4: Simplify right side
    192,406.77x = 19,063,834,735.02
  5. Step 5: Solve for x
    x = 19,063,834,735.02/192,406.77
  6. Step 6: Final answer
    x = 99,080.89

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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.