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Finding the Fourth Proportional to 352,117.99, 528,044.31 and 127,422.85

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Solution

The fourth proportional to 352,117.99, 528,044.31 and 127,422.85 is: 191,086.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,117.99 : 528,044.31 = 127,422.85 : x
  2. Step 2: Convert to fraction form
    352,117.99/528,044.31 = 127,422.85/x
  3. Step 3: Cross multiply
    352,117.99x = 528,044.31 × 127,422.85
  4. Step 4: Simplify right side
    352,117.99x = 67,284,910,906.48
  5. Step 5: Solve for x
    x = 67,284,910,906.48/352,117.99
  6. Step 6: Final answer
    x = 191,086.26

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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.