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Finding the Fourth Proportional to 201,272.63, 301,905.84 and 51,511.64

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Solution

The fourth proportional to 201,272.63, 301,905.84 and 51,511.64 is: 77,266.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,272.63 : 301,905.84 = 51,511.64 : x
  2. Step 2: Convert to fraction form
    201,272.63/301,905.84 = 51,511.64/x
  3. Step 3: Cross multiply
    201,272.63x = 301,905.84 × 51,511.64
  4. Step 4: Simplify right side
    201,272.63x = 15,551,664,943.98
  5. Step 5: Solve for x
    x = 15,551,664,943.98/201,272.63
  6. Step 6: Final answer
    x = 77,266.67

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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.