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Finding the Fourth Proportional to 91,793.44, 126,749.64 and 74,800.24

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Solution

The fourth proportional to 91,793.44, 126,749.64 and 74,800.24 is: 103,285.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,793.44 : 126,749.64 = 74,800.24 : x
  2. Step 2: Convert to fraction form
    91,793.44/126,749.64 = 74,800.24/x
  3. Step 3: Cross multiply
    91,793.44x = 126,749.64 × 74,800.24
  4. Step 4: Simplify right side
    91,793.44x = 9,480,903,491.91
  5. Step 5: Solve for x
    x = 9,480,903,491.91/91,793.44
  6. Step 6: Final answer
    x = 103,285.20

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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.