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Finding the Fourth Proportional to 299,701.98, 449,774.87 and 141,930.90

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Solution

The fourth proportional to 299,701.98, 449,774.87 and 141,930.90 is: 213,001.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,701.98 : 449,774.87 = 141,930.90 : x
  2. Step 2: Convert to fraction form
    299,701.98/449,774.87 = 141,930.90/x
  3. Step 3: Cross multiply
    299,701.98x = 449,774.87 × 141,930.90
  4. Step 4: Simplify right side
    299,701.98x = 63,836,951,386.83
  5. Step 5: Solve for x
    x = 63,836,951,386.83/299,701.98
  6. Step 6: Final answer
    x = 213,001.43

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1.5x scale

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.