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Finding the Fourth Proportional to 123,340.70, 184,930.05 and 48,415.70

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Solution

The fourth proportional to 123,340.70, 184,930.05 and 48,415.70 is: 72,591.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,340.70 : 184,930.05 = 48,415.70 : x
  2. Step 2: Convert to fraction form
    123,340.70/184,930.05 = 48,415.70/x
  3. Step 3: Cross multiply
    123,340.70x = 184,930.05 × 48,415.70
  4. Step 4: Simplify right side
    123,340.70x = 8,953,517,821.79
  5. Step 5: Solve for x
    x = 8,953,517,821.79/123,340.70
  6. Step 6: Final answer
    x = 72,591.75

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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.