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Finding the Fourth Proportional to 216,163.78, 297,645.67 and 195,888.77

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Solution

The fourth proportional to 216,163.78, 297,645.67 and 195,888.77 is: 269,728.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,163.78 : 297,645.67 = 195,888.77 : x
  2. Step 2: Convert to fraction form
    216,163.78/297,645.67 = 195,888.77/x
  3. Step 3: Cross multiply
    216,163.78x = 297,645.67 × 195,888.77
  4. Step 4: Simplify right side
    216,163.78x = 58,305,445,739.19
  5. Step 5: Solve for x
    x = 58,305,445,739.19/216,163.78
  6. Step 6: Final answer
    x = 269,728.10

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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.