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Finding the Fourth Proportional to 105,790.92, 158,686.97 and 26,905.20

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Solution

The fourth proportional to 105,790.92, 158,686.97 and 26,905.20 is: 40,357.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,790.92 : 158,686.97 = 26,905.20 : x
  2. Step 2: Convert to fraction form
    105,790.92/158,686.97 = 26,905.20/x
  3. Step 3: Cross multiply
    105,790.92x = 158,686.97 × 26,905.20
  4. Step 4: Simplify right side
    105,790.92x = 4,269,504,530.72
  5. Step 5: Solve for x
    x = 4,269,504,530.72/105,790.92
  6. Step 6: Final answer
    x = 40,357.95

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1.5x scale

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.