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Finding the Fourth Proportional to 92,728.90, 139,093.35 and 22,608.82

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Solution

The fourth proportional to 92,728.90, 139,093.35 and 22,608.82 is: 33,913.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,728.90 : 139,093.35 = 22,608.82 : x
  2. Step 2: Convert to fraction form
    92,728.90/139,093.35 = 22,608.82/x
  3. Step 3: Cross multiply
    92,728.90x = 139,093.35 × 22,608.82
  4. Step 4: Simplify right side
    92,728.90x = 3,144,736,513.35
  5. Step 5: Solve for x
    x = 3,144,736,513.35/92,728.90
  6. Step 6: Final answer
    x = 33,913.23

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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.