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Finding the Fourth Proportional to 78,704.56, 108,652.44 and 53,344.96

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Solution

The fourth proportional to 78,704.56, 108,652.44 and 53,344.96 is: 73,643.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,704.56 : 108,652.44 = 53,344.96 : x
  2. Step 2: Convert to fraction form
    78,704.56/108,652.44 = 53,344.96/x
  3. Step 3: Cross multiply
    78,704.56x = 108,652.44 × 53,344.96
  4. Step 4: Simplify right side
    78,704.56x = 5,796,060,065.70
  5. Step 5: Solve for x
    x = 5,796,060,065.70/78,704.56
  6. Step 6: Final answer
    x = 73,643.26

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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.