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Finding the Fourth Proportional to 253,841.78, 380,759.93 and 104,048.68

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Solution

The fourth proportional to 253,841.78, 380,759.93 and 104,048.68 is: 156,071.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,841.78 : 380,759.93 = 104,048.68 : x
  2. Step 2: Convert to fraction form
    253,841.78/380,759.93 = 104,048.68/x
  3. Step 3: Cross multiply
    253,841.78x = 380,759.93 × 104,048.68
  4. Step 4: Simplify right side
    253,841.78x = 39,617,568,037.99
  5. Step 5: Solve for x
    x = 39,617,568,037.99/253,841.78
  6. Step 6: Final answer
    x = 156,071.90

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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.