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Finding the Fourth Proportional to 352,009.62, 485,773.29 and 190,864.62

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Solution

The fourth proportional to 352,009.62, 485,773.29 and 190,864.62 is: 263,393.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,009.62 : 485,773.29 = 190,864.62 : x
  2. Step 2: Convert to fraction form
    352,009.62/485,773.29 = 190,864.62/x
  3. Step 3: Cross multiply
    352,009.62x = 485,773.29 × 190,864.62
  4. Step 4: Simplify right side
    352,009.62x = 92,716,934,402.00
  5. Step 5: Solve for x
    x = 92,716,934,402.00/352,009.62
  6. Step 6: Final answer
    x = 263,393.18

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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.