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Finding the Fourth Proportional to 73,046.64, 100,804.32 and 39,512.64

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Solution

The fourth proportional to 73,046.64, 100,804.32 and 39,512.64 is: 54,527.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,046.64 : 100,804.32 = 39,512.64 : x
  2. Step 2: Convert to fraction form
    73,046.64/100,804.32 = 39,512.64/x
  3. Step 3: Cross multiply
    73,046.64x = 100,804.32 × 39,512.64
  4. Step 4: Simplify right side
    73,046.64x = 3,983,044,806.60
  5. Step 5: Solve for x
    x = 3,983,044,806.60/73,046.64
  6. Step 6: Final answer
    x = 54,527.42

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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.