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Finding the Fourth Proportional to 92,847.94, 128,131.67 and 50,406.50

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Solution

The fourth proportional to 92,847.94, 128,131.67 and 50,406.50 is: 69,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,847.94 : 128,131.67 = 50,406.50 : x
  2. Step 2: Convert to fraction form
    92,847.94/128,131.67 = 50,406.50/x
  3. Step 3: Cross multiply
    92,847.94x = 128,131.67 × 50,406.50
  4. Step 4: Simplify right side
    92,847.94x = 6,458,669,470.20
  5. Step 5: Solve for x
    x = 6,458,669,470.20/92,847.94
  6. Step 6: Final answer
    x = 69,561.80

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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.