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Finding the Fourth Proportional to 224,457.37, 336,739.51 and 84,217.21

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Solution

The fourth proportional to 224,457.37, 336,739.51 and 84,217.21 is: 126,345.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,457.37 : 336,739.51 = 84,217.21 : x
  2. Step 2: Convert to fraction form
    224,457.37/336,739.51 = 84,217.21/x
  3. Step 3: Cross multiply
    224,457.37x = 336,739.51 × 84,217.21
  4. Step 4: Simplify right side
    224,457.37x = 28,359,260,345.27
  5. Step 5: Solve for x
    x = 28,359,260,345.27/224,457.37
  6. Step 6: Final answer
    x = 126,345.87

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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.