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Finding the Fourth Proportional to 76,052.52, 113,393.79 and 69,729.39

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Solution

The fourth proportional to 76,052.52, 113,393.79 and 69,729.39 is: 103,966.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,052.52 : 113,393.79 = 69,729.39 : x
  2. Step 2: Convert to fraction form
    76,052.52/113,393.79 = 69,729.39/x
  3. Step 3: Cross multiply
    76,052.52x = 113,393.79 × 69,729.39
  4. Step 4: Simplify right side
    76,052.52x = 7,906,879,806.49
  5. Step 5: Solve for x
    x = 7,906,879,806.49/76,052.52
  6. Step 6: Final answer
    x = 103,966.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.