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Finding the Fourth Proportional to 352,890.34, 486,991.64 and 191,745.39

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Solution

The fourth proportional to 352,890.34, 486,991.64 and 191,745.39 is: 264,610.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,890.34 : 486,991.64 = 191,745.39 : x
  2. Step 2: Convert to fraction form
    352,890.34/486,991.64 = 191,745.39/x
  3. Step 3: Cross multiply
    352,890.34x = 486,991.64 × 191,745.39
  4. Step 4: Simplify right side
    352,890.34x = 93,378,400,979.81
  5. Step 5: Solve for x
    x = 93,378,400,979.81/352,890.34
  6. Step 6: Final answer
    x = 264,610.25

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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.