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Finding the Fourth Proportional to 353,372.19, 487,659.47 and 192,228.11

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Solution

The fourth proportional to 353,372.19, 487,659.47 and 192,228.11 is: 265,277.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,372.19 : 487,659.47 = 192,228.11 : x
  2. Step 2: Convert to fraction form
    353,372.19/487,659.47 = 192,228.11/x
  3. Step 3: Cross multiply
    353,372.19x = 487,659.47 × 192,228.11
  4. Step 4: Simplify right side
    353,372.19x = 93,741,858,241.70
  5. Step 5: Solve for x
    x = 93,741,858,241.70/353,372.19
  6. Step 6: Final answer
    x = 265,277.97

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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.