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Finding the Fourth Proportional to 54,735.20, 82,102.80 and 52,548.20

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Solution

The fourth proportional to 54,735.20, 82,102.80 and 52,548.20 is: 78,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,735.20 : 82,102.80 = 52,548.20 : x
  2. Step 2: Convert to fraction form
    54,735.20/82,102.80 = 52,548.20/x
  3. Step 3: Cross multiply
    54,735.20x = 82,102.80 × 52,548.20
  4. Step 4: Simplify right side
    54,735.20x = 4,314,354,354.96
  5. Step 5: Solve for x
    x = 4,314,354,354.96/54,735.20
  6. Step 6: Final answer
    x = 78,822.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.