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Finding the Fourth Proportional to 170,668.26, 255,857.79 and 70,766.10

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Solution

The fourth proportional to 170,668.26, 255,857.79 and 70,766.10 is: 106,089.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,668.26 : 255,857.79 = 70,766.10 : x
  2. Step 2: Convert to fraction form
    170,668.26/255,857.79 = 70,766.10/x
  3. Step 3: Cross multiply
    170,668.26x = 255,857.79 × 70,766.10
  4. Step 4: Simplify right side
    170,668.26x = 18,106,057,952.92
  5. Step 5: Solve for x
    x = 18,106,057,952.92/170,668.26
  6. Step 6: Final answer
    x = 106,089.19

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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.