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Finding the Fourth Proportional to 61,910.36, 85,434.65 and 35,055.42

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Solution

The fourth proportional to 61,910.36, 85,434.65 and 35,055.42 is: 48,375.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,910.36 : 85,434.65 = 35,055.42 : x
  2. Step 2: Convert to fraction form
    61,910.36/85,434.65 = 35,055.42/x
  3. Step 3: Cross multiply
    61,910.36x = 85,434.65 × 35,055.42
  4. Step 4: Simplify right side
    61,910.36x = 2,994,947,174.10
  5. Step 5: Solve for x
    x = 2,994,947,174.10/61,910.36
  6. Step 6: Final answer
    x = 48,375.54

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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.