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Finding the Fourth Proportional to 104,469.95, 144,181.28 and 61,447.38

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Solution

The fourth proportional to 104,469.95, 144,181.28 and 61,447.38 is: 84,804.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,469.95 : 144,181.28 = 61,447.38 : x
  2. Step 2: Convert to fraction form
    104,469.95/144,181.28 = 61,447.38/x
  3. Step 3: Cross multiply
    104,469.95x = 144,181.28 × 61,447.38
  4. Step 4: Simplify right side
    104,469.95x = 8,859,562,134.49
  5. Step 5: Solve for x
    x = 8,859,562,134.49/104,469.95
  6. Step 6: Final answer
    x = 84,804.89

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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.