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Finding the Fourth Proportional to 452,682, 679,128.03 and 132,820.97

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Solution

The fourth proportional to 452,682, 679,128.03 and 132,820.97 is: 199,262.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,682 : 679,128.03 = 132,820.97 : x
  2. Step 2: Convert to fraction form
    452,682/679,128.03 = 132,820.97/x
  3. Step 3: Cross multiply
    452,682x = 679,128.03 × 132,820.97
  4. Step 4: Simplify right side
    452,682x = 90,202,440,303.15
  5. Step 5: Solve for x
    x = 90,202,440,303.15/452,682
  6. Step 6: Final answer
    x = 199,262.26

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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.