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Finding the Fourth Proportional to 353,251.98, 487,483.14 and 192,103.57

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Solution

The fourth proportional to 353,251.98, 487,483.14 and 192,103.57 is: 265,100.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,251.98 : 487,483.14 = 192,103.57 : x
  2. Step 2: Convert to fraction form
    353,251.98/487,483.14 = 192,103.57/x
  3. Step 3: Cross multiply
    353,251.98x = 487,483.14 × 192,103.57
  4. Step 4: Simplify right side
    353,251.98x = 93,647,251,508.81
  5. Step 5: Solve for x
    x = 93,647,251,508.81/353,251.98
  6. Step 6: Final answer
    x = 265,100.43

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1.5x scale

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.