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Finding the Fourth Proportional to 147,118.50, 220,680.99 and 36,310.50

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Solution

The fourth proportional to 147,118.50, 220,680.99 and 36,310.50 is: 54,466.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,118.50 : 220,680.99 = 36,310.50 : x
  2. Step 2: Convert to fraction form
    147,118.50/220,680.99 = 36,310.50/x
  3. Step 3: Cross multiply
    147,118.50x = 220,680.99 × 36,310.50
  4. Step 4: Simplify right side
    147,118.50x = 8,013,037,087.40
  5. Step 5: Solve for x
    x = 8,013,037,087.40/147,118.50
  6. Step 6: Final answer
    x = 54,466.55

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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.