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Finding the Fourth Proportional to 297,135.18, 445,541.49 and 134,940.15

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Solution

The fourth proportional to 297,135.18, 445,541.49 and 134,940.15 is: 202,336.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,135.18 : 445,541.49 = 134,940.15 : x
  2. Step 2: Convert to fraction form
    297,135.18/445,541.49 = 134,940.15/x
  3. Step 3: Cross multiply
    297,135.18x = 445,541.49 × 134,940.15
  4. Step 4: Simplify right side
    297,135.18x = 60,121,435,491.82
  5. Step 5: Solve for x
    x = 60,121,435,491.82/297,135.18
  6. Step 6: Final answer
    x = 202,336.98

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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.