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Finding the Fourth Proportional to 325,108.72, 448,720.24 and 197,825.28

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Solution

The fourth proportional to 325,108.72, 448,720.24 and 197,825.28 is: 273,041.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,108.72 : 448,720.24 = 197,825.28 : x
  2. Step 2: Convert to fraction form
    325,108.72/448,720.24 = 197,825.28/x
  3. Step 3: Cross multiply
    325,108.72x = 448,720.24 × 197,825.28
  4. Step 4: Simplify right side
    325,108.72x = 88,768,207,119.67
  5. Step 5: Solve for x
    x = 88,768,207,119.67/325,108.72
  6. Step 6: Final answer
    x = 273,041.61

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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.