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Finding the Fourth Proportional to 85,052.72, 117,373.50 and 47,326.97

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Solution

The fourth proportional to 85,052.72, 117,373.50 and 47,326.97 is: 65,311.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,052.72 : 117,373.50 = 47,326.97 : x
  2. Step 2: Convert to fraction form
    85,052.72/117,373.50 = 47,326.97/x
  3. Step 3: Cross multiply
    85,052.72x = 117,373.50 × 47,326.97
  4. Step 4: Simplify right side
    85,052.72x = 5,554,932,113.30
  5. Step 5: Solve for x
    x = 5,554,932,113.30/85,052.72
  6. Step 6: Final answer
    x = 65,311.63

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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.