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Finding the Fourth Proportional to 192,095.90, 288,141.15 and 86,914.70

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Solution

The fourth proportional to 192,095.90, 288,141.15 and 86,914.70 is: 130,370.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,095.90 : 288,141.15 = 86,914.70 : x
  2. Step 2: Convert to fraction form
    192,095.90/288,141.15 = 86,914.70/x
  3. Step 3: Cross multiply
    192,095.90x = 288,141.15 × 86,914.70
  4. Step 4: Simplify right side
    192,095.90x = 25,043,701,609.91
  5. Step 5: Solve for x
    x = 25,043,701,609.91/192,095.90
  6. Step 6: Final answer
    x = 130,370.83

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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.