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Finding the Fourth Proportional to 432,047.28, 648,191.16 and 132,537.54

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Solution

The fourth proportional to 432,047.28, 648,191.16 and 132,537.54 is: 198,843.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,047.28 : 648,191.16 = 132,537.54 : x
  2. Step 2: Convert to fraction form
    432,047.28/648,191.16 = 132,537.54/x
  3. Step 3: Cross multiply
    432,047.28x = 648,191.16 × 132,537.54
  4. Step 4: Simplify right side
    432,047.28x = 85,909,661,796.15
  5. Step 5: Solve for x
    x = 85,909,661,796.15/432,047.28
  6. Step 6: Final answer
    x = 198,843.20

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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.