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Finding the Fourth Proportional to 200,529.80, 300,783.62 and 67,396.32

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Solution

The fourth proportional to 200,529.80, 300,783.62 and 67,396.32 is: 101,090.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,529.80 : 300,783.62 = 67,396.32 : x
  2. Step 2: Convert to fraction form
    200,529.80/300,783.62 = 67,396.32/x
  3. Step 3: Cross multiply
    200,529.80x = 300,783.62 × 67,396.32
  4. Step 4: Simplify right side
    200,529.80x = 20,271,709,104.28
  5. Step 5: Solve for x
    x = 20,271,709,104.28/200,529.80
  6. Step 6: Final answer
    x = 101,090.76

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1.5x scale

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.