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Finding the Fourth Proportional to 92,806.56, 128,069.52 and 50,363.68

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Solution

The fourth proportional to 92,806.56, 128,069.52 and 50,363.68 is: 69,499.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,806.56 : 128,069.52 = 50,363.68 : x
  2. Step 2: Convert to fraction form
    92,806.56/128,069.52 = 50,363.68/x
  3. Step 3: Cross multiply
    92,806.56x = 128,069.52 × 50,363.68
  4. Step 4: Simplify right side
    92,806.56x = 6,450,052,323.03
  5. Step 5: Solve for x
    x = 6,450,052,323.03/92,806.56
  6. Step 6: Final answer
    x = 69,499.96

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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.