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Finding the Fourth Proportional to 395,940.85, 593,905.09 and 96,420.92

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Solution

The fourth proportional to 395,940.85, 593,905.09 and 96,420.92 is: 144,629.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,940.85 : 593,905.09 = 96,420.92 : x
  2. Step 2: Convert to fraction form
    395,940.85/593,905.09 = 96,420.92/x
  3. Step 3: Cross multiply
    395,940.85x = 593,905.09 × 96,420.92
  4. Step 4: Simplify right side
    395,940.85x = 57,264,875,170.48
  5. Step 5: Solve for x
    x = 57,264,875,170.48/395,940.85
  6. Step 6: Final answer
    x = 144,629.87

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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.