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Finding the Fourth Proportional to 91,245.52, 125,903.46 and 50,957.80

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Solution

The fourth proportional to 91,245.52, 125,903.46 and 50,957.80 is: 70,313.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,245.52 : 125,903.46 = 50,957.80 : x
  2. Step 2: Convert to fraction form
    91,245.52/125,903.46 = 50,957.80/x
  3. Step 3: Cross multiply
    91,245.52x = 125,903.46 × 50,957.80
  4. Step 4: Simplify right side
    91,245.52x = 6,415,763,333.99
  5. Step 5: Solve for x
    x = 6,415,763,333.99/91,245.52
  6. Step 6: Final answer
    x = 70,313.19

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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.