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Finding the Fourth Proportional to 201,722.20, 302,583.30 and 170,618.20

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Solution

The fourth proportional to 201,722.20, 302,583.30 and 170,618.20 is: 255,927.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,722.20 : 302,583.30 = 170,618.20 : x
  2. Step 2: Convert to fraction form
    201,722.20/302,583.30 = 170,618.20/x
  3. Step 3: Cross multiply
    201,722.20x = 302,583.30 × 170,618.20
  4. Step 4: Simplify right side
    201,722.20x = 51,626,217,996.06
  5. Step 5: Solve for x
    x = 51,626,217,996.06/201,722.20
  6. Step 6: Final answer
    x = 255,927.30

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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.