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Finding the Fourth Proportional to 352,999.37, 487,142.33 and 191,854.80

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Solution

The fourth proportional to 352,999.37, 487,142.33 and 191,854.80 is: 264,761.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,999.37 : 487,142.33 = 191,854.80 : x
  2. Step 2: Convert to fraction form
    352,999.37/487,142.33 = 191,854.80/x
  3. Step 3: Cross multiply
    352,999.37x = 487,142.33 × 191,854.80
  4. Step 4: Simplify right side
    352,999.37x = 93,460,594,293.68
  5. Step 5: Solve for x
    x = 93,460,594,293.68/352,999.37
  6. Step 6: Final answer
    x = 264,761.36

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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.