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Finding the Fourth Proportional to 245,425.44, 368,146.38 and 67,917.60

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Solution

The fourth proportional to 245,425.44, 368,146.38 and 67,917.60 is: 101,878.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,425.44 : 368,146.38 = 67,917.60 : x
  2. Step 2: Convert to fraction form
    245,425.44/368,146.38 = 67,917.60/x
  3. Step 3: Cross multiply
    245,425.44x = 368,146.38 × 67,917.60
  4. Step 4: Simplify right side
    245,425.44x = 25,003,618,578.29
  5. Step 5: Solve for x
    x = 25,003,618,578.29/245,425.44
  6. Step 6: Final answer
    x = 101,878.67

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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.