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Finding the Fourth Proportional to 352,368.22, 486,271.71 and 191,224.66

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Solution

The fourth proportional to 352,368.22, 486,271.71 and 191,224.66 is: 263,891.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,368.22 : 486,271.71 = 191,224.66 : x
  2. Step 2: Convert to fraction form
    352,368.22/486,271.71 = 191,224.66/x
  3. Step 3: Cross multiply
    352,368.22x = 486,271.71 × 191,224.66
  4. Step 4: Simplify right side
    352,368.22x = 92,987,142,412.37
  5. Step 5: Solve for x
    x = 92,987,142,412.37/352,368.22
  6. Step 6: Final answer
    x = 263,891.97

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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.