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Finding the Fourth Proportional to 201,906.60, 302,903.10 and 61,679.40

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Solution

The fourth proportional to 201,906.60, 302,903.10 and 61,679.40 is: 92,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,906.60 : 302,903.10 = 61,679.40 : x
  2. Step 2: Convert to fraction form
    201,906.60/302,903.10 = 61,679.40/x
  3. Step 3: Cross multiply
    201,906.60x = 302,903.10 × 61,679.40
  4. Step 4: Simplify right side
    201,906.60x = 18,682,881,466.14
  5. Step 5: Solve for x
    x = 18,682,881,466.14/201,906.60
  6. Step 6: Final answer
    x = 92,532.30

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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.