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Finding the Fourth Proportional to 371,033.25, 512,026.05 and 209,884.92

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Solution

The fourth proportional to 371,033.25, 512,026.05 and 209,884.92 is: 289,641.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,033.25 : 512,026.05 = 209,884.92 : x
  2. Step 2: Convert to fraction form
    371,033.25/512,026.05 = 209,884.92/x
  3. Step 3: Cross multiply
    371,033.25x = 512,026.05 × 209,884.92
  4. Step 4: Simplify right side
    371,033.25x = 107,466,546,542.17
  5. Step 5: Solve for x
    x = 107,466,546,542.17/371,033.25
  6. Step 6: Final answer
    x = 289,641.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.