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Finding the Fourth Proportional to 228,367.43, 342,457.49 and 68,387.01

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Solution

The fourth proportional to 228,367.43, 342,457.49 and 68,387.01 is: 102,552.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,367.43 : 342,457.49 = 68,387.01 : x
  2. Step 2: Convert to fraction form
    228,367.43/342,457.49 = 68,387.01/x
  3. Step 3: Cross multiply
    228,367.43x = 342,457.49 × 68,387.01
  4. Step 4: Simplify right side
    228,367.43x = 23,419,643,451.27
  5. Step 5: Solve for x
    x = 23,419,643,451.27/228,367.43
  6. Step 6: Final answer
    x = 102,552.47

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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.