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Finding the Fourth Proportional to 245,475.79, 368,213.73 and 67,982.83

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Solution

The fourth proportional to 245,475.79, 368,213.73 and 67,982.83 is: 101,974.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,475.79 : 368,213.73 = 67,982.83 : x
  2. Step 2: Convert to fraction form
    245,475.79/368,213.73 = 67,982.83/x
  3. Step 3: Cross multiply
    245,475.79x = 368,213.73 × 67,982.83
  4. Step 4: Simplify right side
    245,475.79x = 25,032,211,410.26
  5. Step 5: Solve for x
    x = 25,032,211,410.26/245,475.79
  6. Step 6: Final answer
    x = 101,974.26

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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.