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Finding the Fourth Proportional to 92,101.33, 138,103.18 and 56,578.91

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Solution

The fourth proportional to 92,101.33, 138,103.18 and 56,578.91 is: 84,838.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,101.33 : 138,103.18 = 56,578.91 : x
  2. Step 2: Convert to fraction form
    92,101.33/138,103.18 = 56,578.91/x
  3. Step 3: Cross multiply
    92,101.33x = 138,103.18 × 56,578.91
  4. Step 4: Simplify right side
    92,101.33x = 7,813,726,559.97
  5. Step 5: Solve for x
    x = 7,813,726,559.97/92,101.33
  6. Step 6: Final answer
    x = 84,838.37

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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.