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Finding the Fourth Proportional to 146,874.80, 220,312.20 and 127,629.20

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Solution

The fourth proportional to 146,874.80, 220,312.20 and 127,629.20 is: 191,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,874.80 : 220,312.20 = 127,629.20 : x
  2. Step 2: Convert to fraction form
    146,874.80/220,312.20 = 127,629.20/x
  3. Step 3: Cross multiply
    146,874.80x = 220,312.20 × 127,629.20
  4. Step 4: Simplify right side
    146,874.80x = 28,118,269,836.24
  5. Step 5: Solve for x
    x = 28,118,269,836.24/146,874.80
  6. Step 6: Final answer
    x = 191,443.80

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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.