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Finding the Fourth Proportional to 352,120.46, 485,851.43 and 208,927.04

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Solution

The fourth proportional to 352,120.46, 485,851.43 and 208,927.04 is: 288,274.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,120.46 : 485,851.43 = 208,927.04 : x
  2. Step 2: Convert to fraction form
    352,120.46/485,851.43 = 208,927.04/x
  3. Step 3: Cross multiply
    352,120.46x = 485,851.43 × 208,927.04
  4. Step 4: Simplify right side
    352,120.46x = 101,507,499,242.73
  5. Step 5: Solve for x
    x = 101,507,499,242.73/352,120.46
  6. Step 6: Final answer
    x = 288,274.93

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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.