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Finding the Fourth Proportional to 146,529.78, 219,794.70 and 35,721.78

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Solution

The fourth proportional to 146,529.78, 219,794.70 and 35,721.78 is: 53,582.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,529.78 : 219,794.70 = 35,721.78 : x
  2. Step 2: Convert to fraction form
    146,529.78/219,794.70 = 35,721.78/x
  3. Step 3: Cross multiply
    146,529.78x = 219,794.70 × 35,721.78
  4. Step 4: Simplify right side
    146,529.78x = 7,851,457,918.57
  5. Step 5: Solve for x
    x = 7,851,457,918.57/146,529.78
  6. Step 6: Final answer
    x = 53,582.68

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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.