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Finding the Fourth Proportional to 297,333.75, 445,996.64 and 72,696.12

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Solution

The fourth proportional to 297,333.75, 445,996.64 and 72,696.12 is: 109,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,333.75 : 445,996.64 = 72,696.12 : x
  2. Step 2: Convert to fraction form
    297,333.75/445,996.64 = 72,696.12/x
  3. Step 3: Cross multiply
    297,333.75x = 445,996.64 × 72,696.12
  4. Step 4: Simplify right side
    297,333.75x = 32,422,224,897.56
  5. Step 5: Solve for x
    x = 32,422,224,897.56/297,333.75
  6. Step 6: Final answer
    x = 109,043.20

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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.