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Finding the Fourth Proportional to 453,137.40, 679,662.09 and 137,597.04

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Solution

The fourth proportional to 453,137.40, 679,662.09 and 137,597.04 is: 206,382.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,137.40 : 679,662.09 = 137,597.04 : x
  2. Step 2: Convert to fraction form
    453,137.40/679,662.09 = 137,597.04/x
  3. Step 3: Cross multiply
    453,137.40x = 679,662.09 × 137,597.04
  4. Step 4: Simplify right side
    453,137.40x = 93,519,491,784.21
  5. Step 5: Solve for x
    x = 93,519,491,784.21/453,137.40
  6. Step 6: Final answer
    x = 206,382.20

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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.