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Finding the Fourth Proportional to 217,205.60, 325,808.40 and 202,443.35

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Solution

The fourth proportional to 217,205.60, 325,808.40 and 202,443.35 is: 303,665.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,205.60 : 325,808.40 = 202,443.35 : x
  2. Step 2: Convert to fraction form
    217,205.60/325,808.40 = 202,443.35/x
  3. Step 3: Cross multiply
    217,205.60x = 325,808.40 × 202,443.35
  4. Step 4: Simplify right side
    217,205.60x = 65,957,743,954.14
  5. Step 5: Solve for x
    x = 65,957,743,954.14/217,205.60
  6. Step 6: Final answer
    x = 303,665.03

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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.