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Finding the Fourth Proportional to 200,858.80, 301,289.92 and 51,099.22

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Solution

The fourth proportional to 200,858.80, 301,289.92 and 51,099.22 is: 76,649.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,858.80 : 301,289.92 = 51,099.22 : x
  2. Step 2: Convert to fraction form
    200,858.80/301,289.92 = 51,099.22/x
  3. Step 3: Cross multiply
    200,858.80x = 301,289.92 × 51,099.22
  4. Step 4: Simplify right side
    200,858.80x = 15,395,679,905.86
  5. Step 5: Solve for x
    x = 15,395,679,905.86/200,858.80
  6. Step 6: Final answer
    x = 76,649.27

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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.