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Finding the Fourth Proportional to 200,528.68, 300,781.94 and 67,395.19

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Solution

The fourth proportional to 200,528.68, 300,781.94 and 67,395.19 is: 101,089.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,528.68 : 300,781.94 = 67,395.19 : x
  2. Step 2: Convert to fraction form
    200,528.68/300,781.94 = 67,395.19/x
  3. Step 3: Cross multiply
    200,528.68x = 300,781.94 × 67,395.19
  4. Step 4: Simplify right side
    200,528.68x = 20,271,254,659.45
  5. Step 5: Solve for x
    x = 20,271,254,659.45/200,528.68
  6. Step 6: Final answer
    x = 101,089.06

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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.