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Finding the Fourth Proportional to 146,766.30, 220,149.45 and 53,259.90

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Solution

The fourth proportional to 146,766.30, 220,149.45 and 53,259.90 is: 79,889.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,766.30 : 220,149.45 = 53,259.90 : x
  2. Step 2: Convert to fraction form
    146,766.30/220,149.45 = 53,259.90/x
  3. Step 3: Cross multiply
    146,766.30x = 220,149.45 × 53,259.90
  4. Step 4: Simplify right side
    146,766.30x = 11,725,137,692.06
  5. Step 5: Solve for x
    x = 11,725,137,692.06/146,766.30
  6. Step 6: Final answer
    x = 79,889.85

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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.