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Finding the Fourth Proportional to 351,435.90, 484,972.62 and 196,388.52

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Solution

The fourth proportional to 351,435.90, 484,972.62 and 196,388.52 is: 271,011.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,435.90 : 484,972.62 = 196,388.52 : x
  2. Step 2: Convert to fraction form
    351,435.90/484,972.62 = 196,388.52/x
  3. Step 3: Cross multiply
    351,435.90x = 484,972.62 × 196,388.52
  4. Step 4: Simplify right side
    351,435.90x = 95,243,055,082.32
  5. Step 5: Solve for x
    x = 95,243,055,082.32/351,435.90
  6. Step 6: Final answer
    x = 271,011.17

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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.