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Finding the Fourth Proportional to 92,694.52, 138,934.32 and 42,669.64

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Solution

The fourth proportional to 92,694.52, 138,934.32 and 42,669.64 is: 63,954.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,694.52 : 138,934.32 = 42,669.64 : x
  2. Step 2: Convert to fraction form
    92,694.52/138,934.32 = 42,669.64/x
  3. Step 3: Cross multiply
    92,694.52x = 138,934.32 × 42,669.64
  4. Step 4: Simplify right side
    92,694.52x = 5,928,277,418.04
  5. Step 5: Solve for x
    x = 5,928,277,418.04/92,694.52
  6. Step 6: Final answer
    x = 63,954.99

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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.