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Finding the Fourth Proportional to 91,246.52, 125,904.84 and 50,958.80

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Solution

The fourth proportional to 91,246.52, 125,904.84 and 50,958.80 is: 70,314.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,246.52 : 125,904.84 = 50,958.80 : x
  2. Step 2: Convert to fraction form
    91,246.52/125,904.84 = 50,958.80/x
  3. Step 3: Cross multiply
    91,246.52x = 125,904.84 × 50,958.80
  4. Step 4: Simplify right side
    91,246.52x = 6,415,959,560.59
  5. Step 5: Solve for x
    x = 6,415,959,560.59/91,246.52
  6. Step 6: Final answer
    x = 70,314.57

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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.