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Finding the Fourth Proportional to 353,665.02, 488,057.80 and 192,521.28

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Solution

The fourth proportional to 353,665.02, 488,057.80 and 192,521.28 is: 265,679.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,665.02 : 488,057.80 = 192,521.28 : x
  2. Step 2: Convert to fraction form
    353,665.02/488,057.80 = 192,521.28/x
  3. Step 3: Cross multiply
    353,665.02x = 488,057.80 × 192,521.28
  4. Step 4: Simplify right side
    353,665.02x = 93,961,512,369.98
  5. Step 5: Solve for x
    x = 93,961,512,369.98/353,665.02
  6. Step 6: Final answer
    x = 265,679.41

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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.