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Finding the Fourth Proportional to 372,792.99, 514,468.89 and 211,663.05

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Solution

The fourth proportional to 372,792.99, 514,468.89 and 211,663.05 is: 292,103.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,792.99 : 514,468.89 = 211,663.05 : x
  2. Step 2: Convert to fraction form
    372,792.99/514,468.89 = 211,663.05/x
  3. Step 3: Cross multiply
    372,792.99x = 514,468.89 × 211,663.05
  4. Step 4: Simplify right side
    372,792.99x = 108,894,054,387.52
  5. Step 5: Solve for x
    x = 108,894,054,387.52/372,792.99
  6. Step 6: Final answer
    x = 292,103.28

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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.