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Finding the Fourth Proportional to 453,137.49, 679,662.09 and 137,597.13

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Solution

The fourth proportional to 453,137.49, 679,662.09 and 137,597.13 is: 206,382.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,137.49 : 679,662.09 = 137,597.13 : x
  2. Step 2: Convert to fraction form
    453,137.49/679,662.09 = 137,597.13/x
  3. Step 3: Cross multiply
    453,137.49x = 679,662.09 × 137,597.13
  4. Step 4: Simplify right side
    453,137.49x = 93,519,552,953.80
  5. Step 5: Solve for x
    x = 93,519,552,953.80/453,137.49
  6. Step 6: Final answer
    x = 206,382.29

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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.