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Finding the Fourth Proportional to 352,066.10, 485,851.49 and 190,921.11

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Solution

The fourth proportional to 352,066.10, 485,851.49 and 190,921.11 is: 263,471.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,066.10 : 485,851.49 = 190,921.11 : x
  2. Step 2: Convert to fraction form
    352,066.10/485,851.49 = 190,921.11/x
  3. Step 3: Cross multiply
    352,066.10x = 485,851.49 × 190,921.11
  4. Step 4: Simplify right side
    352,066.10x = 92,759,304,811.35
  5. Step 5: Solve for x
    x = 92,759,304,811.35/352,066.10
  6. Step 6: Final answer
    x = 263,471.28

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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.