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Finding the Fourth Proportional to 90,847.94, 125,368.90 and 50,561.69

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Solution

The fourth proportional to 90,847.94, 125,368.90 and 50,561.69 is: 69,774.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,847.94 : 125,368.90 = 50,561.69 : x
  2. Step 2: Convert to fraction form
    90,847.94/125,368.90 = 50,561.69/x
  3. Step 3: Cross multiply
    90,847.94x = 125,368.90 × 50,561.69
  4. Step 4: Simplify right side
    90,847.94x = 6,338,862,704.19
  5. Step 5: Solve for x
    x = 6,338,862,704.19/90,847.94
  6. Step 6: Final answer
    x = 69,774.43

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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.