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Finding the Fourth Proportional to 192,668.55, 265,878.79 and 106,622.51

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Solution

The fourth proportional to 192,668.55, 265,878.79 and 106,622.51 is: 147,136.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,668.55 : 265,878.79 = 106,622.51 : x
  2. Step 2: Convert to fraction form
    192,668.55/265,878.79 = 106,622.51/x
  3. Step 3: Cross multiply
    192,668.55x = 265,878.79 × 106,622.51
  4. Step 4: Simplify right side
    192,668.55x = 28,348,664,816.95
  5. Step 5: Solve for x
    x = 28,348,664,816.95/192,668.55
  6. Step 6: Final answer
    x = 147,136.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.