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Finding the Fourth Proportional to 252,835.73, 379,126.63 and 84,296.40

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Solution

The fourth proportional to 252,835.73, 379,126.63 and 84,296.40 is: 126,402.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,835.73 : 379,126.63 = 84,296.40 : x
  2. Step 2: Convert to fraction form
    252,835.73/379,126.63 = 84,296.40/x
  3. Step 3: Cross multiply
    252,835.73x = 379,126.63 × 84,296.40
  4. Step 4: Simplify right side
    252,835.73x = 31,959,008,262.61
  5. Step 5: Solve for x
    x = 31,959,008,262.61/252,835.73
  6. Step 6: Final answer
    x = 126,402.26

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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.