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Finding the Fourth Proportional to 105,571.56, 158,357.34 and 26,685.79

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Solution

The fourth proportional to 105,571.56, 158,357.34 and 26,685.79 is: 40,028.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,571.56 : 158,357.34 = 26,685.79 : x
  2. Step 2: Convert to fraction form
    105,571.56/158,357.34 = 26,685.79/x
  3. Step 3: Cross multiply
    105,571.56x = 158,357.34 × 26,685.79
  4. Step 4: Simplify right side
    105,571.56x = 4,225,890,082.85
  5. Step 5: Solve for x
    x = 4,225,890,082.85/105,571.56
  6. Step 6: Final answer
    x = 40,028.68

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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.