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Finding the Fourth Proportional to 201,521.80, 301,845.30 and 166,529.80

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Solution

The fourth proportional to 201,521.80, 301,845.30 and 166,529.80 is: 249,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,521.80 : 301,845.30 = 166,529.80 : x
  2. Step 2: Convert to fraction form
    201,521.80/301,845.30 = 166,529.80/x
  3. Step 3: Cross multiply
    201,521.80x = 301,845.30 × 166,529.80
  4. Step 4: Simplify right side
    201,521.80x = 50,266,237,439.94
  5. Step 5: Solve for x
    x = 50,266,237,439.94/201,521.80
  6. Step 6: Final answer
    x = 249,433.25

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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.