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Finding the Fourth Proportional to 202,977.80, 304,485.90 and 55,233.80

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Solution

The fourth proportional to 202,977.80, 304,485.90 and 55,233.80 is: 82,855.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,977.80 : 304,485.90 = 55,233.80 : x
  2. Step 2: Convert to fraction form
    202,977.80/304,485.90 = 55,233.80/x
  3. Step 3: Cross multiply
    202,977.80x = 304,485.90 × 55,233.80
  4. Step 4: Simplify right side
    202,977.80x = 16,817,913,303.42
  5. Step 5: Solve for x
    x = 16,817,913,303.42/202,977.80
  6. Step 6: Final answer
    x = 82,855.92

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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.