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Finding the Fourth Proportional to 146,064.78, 219,128.90 and 44,863.20

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Solution

The fourth proportional to 146,064.78, 219,128.90 and 44,863.20 is: 67,304.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,064.78 : 219,128.90 = 44,863.20 : x
  2. Step 2: Convert to fraction form
    146,064.78/219,128.90 = 44,863.20/x
  3. Step 3: Cross multiply
    146,064.78x = 219,128.90 × 44,863.20
  4. Step 4: Simplify right side
    146,064.78x = 9,830,823,442.16
  5. Step 5: Solve for x
    x = 9,830,823,442.16/146,064.78
  6. Step 6: Final answer
    x = 67,304.54

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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.