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Finding the Fourth Proportional to 353,439.94, 487,749.26 and 192,296.16

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Solution

The fourth proportional to 353,439.94, 487,749.26 and 192,296.16 is: 265,369.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,439.94 : 487,749.26 = 192,296.16 : x
  2. Step 2: Convert to fraction form
    353,439.94/487,749.26 = 192,296.16/x
  3. Step 3: Cross multiply
    353,439.94x = 487,749.26 × 192,296.16
  4. Step 4: Simplify right side
    353,439.94x = 93,792,309,740.84
  5. Step 5: Solve for x
    x = 93,792,309,740.84/353,439.94
  6. Step 6: Final answer
    x = 265,369.87

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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.