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Finding the Fourth Proportional to 297,116.49, 445,513.44 and 134,921.47

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Solution

The fourth proportional to 297,116.49, 445,513.44 and 134,921.47 is: 202,308.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,116.49 : 445,513.44 = 134,921.47 : x
  2. Step 2: Convert to fraction form
    297,116.49/445,513.44 = 134,921.47/x
  3. Step 3: Cross multiply
    297,116.49x = 445,513.44 × 134,921.47
  4. Step 4: Simplify right side
    297,116.49x = 60,109,327,554.95
  5. Step 5: Solve for x
    x = 60,109,327,554.95/297,116.49
  6. Step 6: Final answer
    x = 202,308.96

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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.