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Finding the Fourth Proportional to 105,649.87, 158,474.58 and 26,763.87

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Solution

The fourth proportional to 105,649.87, 158,474.58 and 26,763.87 is: 40,145.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,649.87 : 158,474.58 = 26,763.87 : x
  2. Step 2: Convert to fraction form
    105,649.87/158,474.58 = 26,763.87/x
  3. Step 3: Cross multiply
    105,649.87x = 158,474.58 × 26,763.87
  4. Step 4: Simplify right side
    105,649.87x = 4,241,392,659.92
  5. Step 5: Solve for x
    x = 4,241,392,659.92/105,649.87
  6. Step 6: Final answer
    x = 40,145.74

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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.