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Finding the Fourth Proportional to 202,965.80, 304,467.90 and 55,221.80

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Solution

The fourth proportional to 202,965.80, 304,467.90 and 55,221.80 is: 82,837.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,965.80 : 304,467.90 = 55,221.80 : x
  2. Step 2: Convert to fraction form
    202,965.80/304,467.90 = 55,221.80/x
  3. Step 3: Cross multiply
    202,965.80x = 304,467.90 × 55,221.80
  4. Step 4: Simplify right side
    202,965.80x = 16,813,265,480.22
  5. Step 5: Solve for x
    x = 16,813,265,480.22/202,965.80
  6. Step 6: Final answer
    x = 82,837.92

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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.