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Finding the Fourth Proportional to 68,212,197.92, 102,358,819.25 and 25,111,668.51

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Solution

The fourth proportional to 68,212,197.92, 102,358,819.25 and 25,111,668.51 is: 37,682,420.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,212,197.92 : 102,358,819.25 = 25,111,668.51 : x
  2. Step 2: Convert to fraction form
    68,212,197.92/102,358,819.25 = 25,111,668.51/x
  3. Step 3: Cross multiply
    68,212,197.92x = 102,358,819.25 × 25,111,668.51
  4. Step 4: Simplify right side
    68,212,197.92x = 2,570,400,737,955,449
  5. Step 5: Solve for x
    x = 2,570,400,737,955,449/68,212,197.92
  6. Step 6: Final answer
    x = 37,682,420.69

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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.