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Finding the Fourth Proportional to 82,803.92, 124,207.94 and 30,213.41

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Solution

The fourth proportional to 82,803.92, 124,207.94 and 30,213.41 is: 45,320.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,803.92 : 124,207.94 = 30,213.41 : x
  2. Step 2: Convert to fraction form
    82,803.92/124,207.94 = 30,213.41/x
  3. Step 3: Cross multiply
    82,803.92x = 124,207.94 × 30,213.41
  4. Step 4: Simplify right side
    82,803.92x = 3,752,745,416.48
  5. Step 5: Solve for x
    x = 3,752,745,416.48/82,803.92
  6. Step 6: Final answer
    x = 45,320.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.