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Finding the Fourth Proportional to 200,528.93, 300,782.32 and 67,395.44

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Solution

The fourth proportional to 200,528.93, 300,782.32 and 67,395.44 is: 101,089.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,528.93 : 300,782.32 = 67,395.44 : x
  2. Step 2: Convert to fraction form
    200,528.93/300,782.32 = 67,395.44/x
  3. Step 3: Cross multiply
    200,528.93x = 300,782.32 × 67,395.44
  4. Step 4: Simplify right side
    200,528.93x = 20,271,355,128.22
  5. Step 5: Solve for x
    x = 20,271,355,128.22/200,528.93
  6. Step 6: Final answer
    x = 101,089.43

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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.