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Finding the Fourth Proportional to 201,235.80, 302,048.10 and 122,503.80

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Solution

The fourth proportional to 201,235.80, 302,048.10 and 122,503.80 is: 183,874.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,235.80 : 302,048.10 = 122,503.80 : x
  2. Step 2: Convert to fraction form
    201,235.80/302,048.10 = 122,503.80/x
  3. Step 3: Cross multiply
    201,235.80x = 302,048.10 × 122,503.80
  4. Step 4: Simplify right side
    201,235.80x = 37,002,040,032.78
  5. Step 5: Solve for x
    x = 37,002,040,032.78/201,235.80
  6. Step 6: Final answer
    x = 183,874.04

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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.