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Finding the Fourth Proportional to 210,560.96, 315,794.91 and 60,768.66

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Solution

The fourth proportional to 210,560.96, 315,794.91 and 60,768.66 is: 91,139.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,560.96 : 315,794.91 = 60,768.66 : x
  2. Step 2: Convert to fraction form
    210,560.96/315,794.91 = 60,768.66/x
  3. Step 3: Cross multiply
    210,560.96x = 315,794.91 × 60,768.66
  4. Step 4: Simplify right side
    210,560.96x = 19,190,433,211.68
  5. Step 5: Solve for x
    x = 19,190,433,211.68/210,560.96
  6. Step 6: Final answer
    x = 91,139.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.