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Finding the Fourth Proportional to 92,705.84, 139,012.74 and 29,517.73

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Solution

The fourth proportional to 92,705.84, 139,012.74 and 29,517.73 is: 44,261.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,705.84 : 139,012.74 = 29,517.73 : x
  2. Step 2: Convert to fraction form
    92,705.84/139,012.74 = 29,517.73/x
  3. Step 3: Cross multiply
    92,705.84x = 139,012.74 × 29,517.73
  4. Step 4: Simplify right side
    92,705.84x = 4,103,339,830.82
  5. Step 5: Solve for x
    x = 4,103,339,830.82/92,705.84
  6. Step 6: Final answer
    x = 44,261.94

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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.