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Finding the Fourth Proportional to 231,205.80, 346,831.80 and 62,728.80

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Solution

The fourth proportional to 231,205.80, 346,831.80 and 62,728.80 is: 94,099.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,205.80 : 346,831.80 = 62,728.80 : x
  2. Step 2: Convert to fraction form
    231,205.80/346,831.80 = 62,728.80/x
  3. Step 3: Cross multiply
    231,205.80x = 346,831.80 × 62,728.80
  4. Step 4: Simplify right side
    231,205.80x = 21,756,342,615.84
  5. Step 5: Solve for x
    x = 21,756,342,615.84/231,205.80
  6. Step 6: Final answer
    x = 94,099.47

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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.