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Finding the Fourth Proportional to 61,188.89, 84,440.57 and 34,333.90

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Solution

The fourth proportional to 61,188.89, 84,440.57 and 34,333.90 is: 47,380.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,188.89 : 84,440.57 = 34,333.90 : x
  2. Step 2: Convert to fraction form
    61,188.89/84,440.57 = 34,333.90/x
  3. Step 3: Cross multiply
    61,188.89x = 84,440.57 × 34,333.90
  4. Step 4: Simplify right side
    61,188.89x = 2,899,173,961.06
  5. Step 5: Solve for x
    x = 2,899,173,961.06/61,188.89
  6. Step 6: Final answer
    x = 47,380.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.