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Finding the Fourth Proportional to 192,609.80, 265,800 and 107,726.80

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Solution

The fourth proportional to 192,609.80, 265,800 and 107,726.80 is: 148,662.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,609.80 : 265,800 = 107,726.80 : x
  2. Step 2: Convert to fraction form
    192,609.80/265,800 = 107,726.80/x
  3. Step 3: Cross multiply
    192,609.80x = 265,800 × 107,726.80
  4. Step 4: Simplify right side
    192,609.80x = 28,633,783,440
  5. Step 5: Solve for x
    x = 28,633,783,440/192,609.80
  6. Step 6: Final answer
    x = 148,662.13

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1.5x scale

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.