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Finding the Fourth Proportional to 91,566.45, 126,358.74 and 50,728.88

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Solution

The fourth proportional to 91,566.45, 126,358.74 and 50,728.88 is: 70,004.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,566.45 : 126,358.74 = 50,728.88 : x
  2. Step 2: Convert to fraction form
    91,566.45/126,358.74 = 50,728.88/x
  3. Step 3: Cross multiply
    91,566.45x = 126,358.74 × 50,728.88
  4. Step 4: Simplify right side
    91,566.45x = 6,410,037,674.31
  5. Step 5: Solve for x
    x = 6,410,037,674.31/91,566.45
  6. Step 6: Final answer
    x = 70,004.22

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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.