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Finding the Fourth Proportional to 122,984.80, 184,477.20 and 60,647.20

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Solution

The fourth proportional to 122,984.80, 184,477.20 and 60,647.20 is: 90,970.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,984.80 : 184,477.20 = 60,647.20 : x
  2. Step 2: Convert to fraction form
    122,984.80/184,477.20 = 60,647.20/x
  3. Step 3: Cross multiply
    122,984.80x = 184,477.20 × 60,647.20
  4. Step 4: Simplify right side
    122,984.80x = 11,188,025,643.84
  5. Step 5: Solve for x
    x = 11,188,025,643.84/122,984.80
  6. Step 6: Final answer
    x = 90,970.80

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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.