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Finding the Fourth Proportional to 68,819.69, 103,235.69 and 26,698.76

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Solution

The fourth proportional to 68,819.69, 103,235.69 and 26,698.76 is: 40,050.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,819.69 : 103,235.69 = 26,698.76 : x
  2. Step 2: Convert to fraction form
    68,819.69/103,235.69 = 26,698.76/x
  3. Step 3: Cross multiply
    68,819.69x = 103,235.69 × 26,698.76
  4. Step 4: Simplify right side
    68,819.69x = 2,756,264,261.07
  5. Step 5: Solve for x
    x = 2,756,264,261.07/68,819.69
  6. Step 6: Final answer
    x = 40,050.52

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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.