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Finding the Fourth Proportional to 70,672.48, 106,021.52 and 29,096.80

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Solution

The fourth proportional to 70,672.48, 106,021.52 and 29,096.80 is: 43,650.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,672.48 : 106,021.52 = 29,096.80 : x
  2. Step 2: Convert to fraction form
    70,672.48/106,021.52 = 29,096.80/x
  3. Step 3: Cross multiply
    70,672.48x = 106,021.52 × 29,096.80
  4. Step 4: Simplify right side
    70,672.48x = 3,084,886,963.14
  5. Step 5: Solve for x
    x = 3,084,886,963.14/70,672.48
  6. Step 6: Final answer
    x = 43,650.47

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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.