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Finding the Fourth Proportional to 453,042.90, 679,132.35 and 168,657.30

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Solution

The fourth proportional to 453,042.90, 679,132.35 and 168,657.30 is: 252,825.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,042.90 : 679,132.35 = 168,657.30 : x
  2. Step 2: Convert to fraction form
    453,042.90/679,132.35 = 168,657.30/x
  3. Step 3: Cross multiply
    453,042.90x = 679,132.35 × 168,657.30
  4. Step 4: Simplify right side
    453,042.90x = 114,540,628,493.66
  5. Step 5: Solve for x
    x = 114,540,628,493.66/453,042.90
  6. Step 6: Final answer
    x = 252,825.13

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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.