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Finding the Fourth Proportional to 70,949.67, 106,352.64 and 46,005.54

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Solution

The fourth proportional to 70,949.67, 106,352.64 and 46,005.54 is: 68,961.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,949.67 : 106,352.64 = 46,005.54 : x
  2. Step 2: Convert to fraction form
    70,949.67/106,352.64 = 46,005.54/x
  3. Step 3: Cross multiply
    70,949.67x = 106,352.64 × 46,005.54
  4. Step 4: Simplify right side
    70,949.67x = 4,892,810,633.63
  5. Step 5: Solve for x
    x = 4,892,810,633.63/70,949.67
  6. Step 6: Final answer
    x = 68,961.71

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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.