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Finding the Fourth Proportional to 173,271.28, 259,906.74 and 65,220.82

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Solution

The fourth proportional to 173,271.28, 259,906.74 and 65,220.82 is: 97,831.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,271.28 : 259,906.74 = 65,220.82 : x
  2. Step 2: Convert to fraction form
    173,271.28/259,906.74 = 65,220.82/x
  3. Step 3: Cross multiply
    173,271.28x = 259,906.74 × 65,220.82
  4. Step 4: Simplify right side
    173,271.28x = 16,951,330,706.33
  5. Step 5: Solve for x
    x = 16,951,330,706.33/173,271.28
  6. Step 6: Final answer
    x = 97,831.16

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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.