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Finding the Fourth Proportional to 73,390.44, 101,276.10 and 39,855.72

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Solution

The fourth proportional to 73,390.44, 101,276.10 and 39,855.72 is: 54,999.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,390.44 : 101,276.10 = 39,855.72 : x
  2. Step 2: Convert to fraction form
    73,390.44/101,276.10 = 39,855.72/x
  3. Step 3: Cross multiply
    73,390.44x = 101,276.10 × 39,855.72
  4. Step 4: Simplify right side
    73,390.44x = 4,036,431,884.29
  5. Step 5: Solve for x
    x = 4,036,431,884.29/73,390.44
  6. Step 6: Final answer
    x = 54,999.42

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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.