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Finding the Fourth Proportional to 341,976.44, 512,945.22 and 92,639

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Solution

The fourth proportional to 341,976.44, 512,945.22 and 92,639 is: 138,953.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,976.44 : 512,945.22 = 92,639 : x
  2. Step 2: Convert to fraction form
    341,976.44/512,945.22 = 92,639/x
  3. Step 3: Cross multiply
    341,976.44x = 512,945.22 × 92,639
  4. Step 4: Simplify right side
    341,976.44x = 47,518,732,235.58
  5. Step 5: Solve for x
    x = 47,518,732,235.58/341,976.44
  6. Step 6: Final answer
    x = 138,953.23

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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.