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Finding the Fourth Proportional to 91,238.52, 125,893.80 and 50,950.80

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Solution

The fourth proportional to 91,238.52, 125,893.80 and 50,950.80 is: 70,303.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,238.52 : 125,893.80 = 50,950.80 : x
  2. Step 2: Convert to fraction form
    91,238.52/125,893.80 = 50,950.80/x
  3. Step 3: Cross multiply
    91,238.52x = 125,893.80 × 50,950.80
  4. Step 4: Simplify right side
    91,238.52x = 6,414,389,825.04
  5. Step 5: Solve for x
    x = 6,414,389,825.04/91,238.52
  6. Step 6: Final answer
    x = 70,303.53

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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.