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Finding the Fourth Proportional to 192,358.72, 288,511.16 and 65,996.88

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Solution

The fourth proportional to 192,358.72, 288,511.16 and 65,996.88 is: 98,986.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,358.72 : 288,511.16 = 65,996.88 : x
  2. Step 2: Convert to fraction form
    192,358.72/288,511.16 = 65,996.88/x
  3. Step 3: Cross multiply
    192,358.72x = 288,511.16 × 65,996.88
  4. Step 4: Simplify right side
    192,358.72x = 19,040,836,405.18
  5. Step 5: Solve for x
    x = 19,040,836,405.18/192,358.72
  6. Step 6: Final answer
    x = 98,986.08

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1.5x scale

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.