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Finding the Fourth Proportional to 353,959.28, 488,463 and 192,813.93

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Solution

The fourth proportional to 353,959.28, 488,463 and 192,813.93 is: 266,082.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,959.28 : 488,463 = 192,813.93 : x
  2. Step 2: Convert to fraction form
    353,959.28/488,463 = 192,813.93/x
  3. Step 3: Cross multiply
    353,959.28x = 488,463 × 192,813.93
  4. Step 4: Simplify right side
    353,959.28x = 94,182,470,689.59
  5. Step 5: Solve for x
    x = 94,182,470,689.59/353,959.28
  6. Step 6: Final answer
    x = 266,082.79

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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.