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Finding the Fourth Proportional to 345,847.78, 477,270.78 and 192,895.87

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Solution

The fourth proportional to 345,847.78, 477,270.78 and 192,895.87 is: 266,196.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,847.78 : 477,270.78 = 192,895.87 : x
  2. Step 2: Convert to fraction form
    345,847.78/477,270.78 = 192,895.87/x
  3. Step 3: Cross multiply
    345,847.78x = 477,270.78 × 192,895.87
  4. Step 4: Simplify right side
    345,847.78x = 92,063,562,333.68
  5. Step 5: Solve for x
    x = 92,063,562,333.68/345,847.78
  6. Step 6: Final answer
    x = 266,196.77

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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.