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Finding the Fourth Proportional to 228,689.28, 343,033.92 and 104,065.92

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Solution

The fourth proportional to 228,689.28, 343,033.92 and 104,065.92 is: 156,098.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,689.28 : 343,033.92 = 104,065.92 : x
  2. Step 2: Convert to fraction form
    228,689.28/343,033.92 = 104,065.92/x
  3. Step 3: Cross multiply
    228,689.28x = 343,033.92 × 104,065.92
  4. Step 4: Simplify right side
    228,689.28x = 35,698,140,476.01
  5. Step 5: Solve for x
    x = 35,698,140,476.01/228,689.28
  6. Step 6: Final answer
    x = 156,098.88

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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.