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Finding the Fourth Proportional to 372,792.87, 514,468.73 and 211,662.91

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Solution

The fourth proportional to 372,792.87, 514,468.73 and 211,662.91 is: 292,103.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,792.87 : 514,468.73 = 211,662.91 : x
  2. Step 2: Convert to fraction form
    372,792.87/514,468.73 = 211,662.91/x
  3. Step 3: Cross multiply
    372,792.87x = 514,468.73 × 211,662.91
  4. Step 4: Simplify right side
    372,792.87x = 108,893,948,495.80
  5. Step 5: Solve for x
    x = 108,893,948,495.80/372,792.87
  6. Step 6: Final answer
    x = 292,103.09

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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.