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Finding the Fourth Proportional to 92,680.82, 139,019.92 and 36,521.41

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Solution

The fourth proportional to 92,680.82, 139,019.92 and 36,521.41 is: 54,781.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,680.82 : 139,019.92 = 36,521.41 : x
  2. Step 2: Convert to fraction form
    92,680.82/139,019.92 = 36,521.41/x
  3. Step 3: Cross multiply
    92,680.82x = 139,019.92 × 36,521.41
  4. Step 4: Simplify right side
    92,680.82x = 5,077,203,616.51
  5. Step 5: Solve for x
    x = 5,077,203,616.51/92,680.82
  6. Step 6: Final answer
    x = 54,781.60

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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.