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Finding the Fourth Proportional to 245,738.36, 368,607.69 and 68,245.36

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Solution

The fourth proportional to 245,738.36, 368,607.69 and 68,245.36 is: 102,368.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,738.36 : 368,607.69 = 68,245.36 : x
  2. Step 2: Convert to fraction form
    245,738.36/368,607.69 = 68,245.36/x
  3. Step 3: Cross multiply
    245,738.36x = 368,607.69 × 68,245.36
  4. Step 4: Simplify right side
    245,738.36x = 25,155,763,581.30
  5. Step 5: Solve for x
    x = 25,155,763,581.30/245,738.36
  6. Step 6: Final answer
    x = 102,368.08

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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.