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Finding the Fourth Proportional to 84,466.62, 126,611.66 and 28,260.50

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Solution

The fourth proportional to 84,466.62, 126,611.66 and 28,260.50 is: 42,361.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,466.62 : 126,611.66 = 28,260.50 : x
  2. Step 2: Convert to fraction form
    84,466.62/126,611.66 = 28,260.50/x
  3. Step 3: Cross multiply
    84,466.62x = 126,611.66 × 28,260.50
  4. Step 4: Simplify right side
    84,466.62x = 3,578,108,255.02
  5. Step 5: Solve for x
    x = 3,578,108,255.02/84,466.62
  6. Step 6: Final answer
    x = 42,361.21

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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.