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Finding the Fourth Proportional to 192,656.85, 265,859.90 and 106,619.47

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Solution

The fourth proportional to 192,656.85, 265,859.90 and 106,619.47 is: 147,131.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,656.85 : 265,859.90 = 106,619.47 : x
  2. Step 2: Convert to fraction form
    192,656.85/265,859.90 = 106,619.47/x
  3. Step 3: Cross multiply
    192,656.85x = 265,859.90 × 106,619.47
  4. Step 4: Simplify right side
    192,656.85x = 28,345,840,834.33
  5. Step 5: Solve for x
    x = 28,345,840,834.33/192,656.85
  6. Step 6: Final answer
    x = 147,131.24

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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.