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Finding the Fourth Proportional to 123,629.70, 185,363.55 and 48,704.70

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Solution

The fourth proportional to 123,629.70, 185,363.55 and 48,704.70 is: 73,025.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,629.70 : 185,363.55 = 48,704.70 : x
  2. Step 2: Convert to fraction form
    123,629.70/185,363.55 = 48,704.70/x
  3. Step 3: Cross multiply
    123,629.70x = 185,363.55 × 48,704.70
  4. Step 4: Simplify right side
    123,629.70x = 9,028,076,093.69
  5. Step 5: Solve for x
    x = 9,028,076,093.69/123,629.70
  6. Step 6: Final answer
    x = 73,025.14

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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.