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Finding the Fourth Proportional to 197,391.54, 296,056.38 and 64,270.90

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Solution

The fourth proportional to 197,391.54, 296,056.38 and 64,270.90 is: 96,396.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,391.54 : 296,056.38 = 64,270.90 : x
  2. Step 2: Convert to fraction form
    197,391.54/296,056.38 = 64,270.90/x
  3. Step 3: Cross multiply
    197,391.54x = 296,056.38 × 64,270.90
  4. Step 4: Simplify right side
    197,391.54x = 19,027,809,993.34
  5. Step 5: Solve for x
    x = 19,027,809,993.34/197,391.54
  6. Step 6: Final answer
    x = 96,396.28

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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.