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Finding the Fourth Proportional to 146,563.80, 219,918.60 and 57,820.20

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Solution

The fourth proportional to 146,563.80, 219,918.60 and 57,820.20 is: 86,759.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,563.80 : 219,918.60 = 57,820.20 : x
  2. Step 2: Convert to fraction form
    146,563.80/219,918.60 = 57,820.20/x
  3. Step 3: Cross multiply
    146,563.80x = 219,918.60 × 57,820.20
  4. Step 4: Simplify right side
    146,563.80x = 12,715,737,435.72
  5. Step 5: Solve for x
    x = 12,715,737,435.72/146,563.80
  6. Step 6: Final answer
    x = 86,759.06

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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.