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Finding the Fourth Proportional to 101,008.72, 151,345.56 and 61,446.16

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Solution

The fourth proportional to 101,008.72, 151,345.56 and 61,446.16 is: 92,067.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,008.72 : 151,345.56 = 61,446.16 : x
  2. Step 2: Convert to fraction form
    101,008.72/151,345.56 = 61,446.16/x
  3. Step 3: Cross multiply
    101,008.72x = 151,345.56 × 61,446.16
  4. Step 4: Simplify right side
    101,008.72x = 9,299,603,495.05
  5. Step 5: Solve for x
    x = 9,299,603,495.05/101,008.72
  6. Step 6: Final answer
    x = 92,067.33

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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.