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Finding the Fourth Proportional to 69,831.28, 96,480.04 and 48,704.88

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Solution

The fourth proportional to 69,831.28, 96,480.04 and 48,704.88 is: 67,291.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,831.28 : 96,480.04 = 48,704.88 : x
  2. Step 2: Convert to fraction form
    69,831.28/96,480.04 = 48,704.88/x
  3. Step 3: Cross multiply
    69,831.28x = 96,480.04 × 48,704.88
  4. Step 4: Simplify right side
    69,831.28x = 4,699,048,770.60
  5. Step 5: Solve for x
    x = 4,699,048,770.60/69,831.28
  6. Step 6: Final answer
    x = 67,291.46

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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.