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Finding the Fourth Proportional to 192,551.90, 288,736.70 and 112,613.00

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Solution

The fourth proportional to 192,551.90, 288,736.70 and 112,613.00 is: 168,866.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,551.90 : 288,736.70 = 112,613.00 : x
  2. Step 2: Convert to fraction form
    192,551.90/288,736.70 = 112,613.00/x
  3. Step 3: Cross multiply
    192,551.90x = 288,736.70 × 112,613.00
  4. Step 4: Simplify right side
    192,551.90x = 32,515,503,990.35
  5. Step 5: Solve for x
    x = 32,515,503,990.35/192,551.90
  6. Step 6: Final answer
    x = 168,866.19

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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.