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Finding the Fourth Proportional to 122,783.90, 184,175.85 and 43,900.70

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Solution

The fourth proportional to 122,783.90, 184,175.85 and 43,900.70 is: 65,851.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,783.90 : 184,175.85 = 43,900.70 : x
  2. Step 2: Convert to fraction form
    122,783.90/184,175.85 = 43,900.70/x
  3. Step 3: Cross multiply
    122,783.90x = 184,175.85 × 43,900.70
  4. Step 4: Simplify right side
    122,783.90x = 8,085,448,738.10
  5. Step 5: Solve for x
    x = 8,085,448,738.10/122,783.90
  6. Step 6: Final answer
    x = 65,851.05

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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.