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Finding the Fourth Proportional to 122,803.60, 184,302.60 and 47,959.60

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Solution

The fourth proportional to 122,803.60, 184,302.60 and 47,959.60 is: 71,977.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,803.60 : 184,302.60 = 47,959.60 : x
  2. Step 2: Convert to fraction form
    122,803.60/184,302.60 = 47,959.60/x
  3. Step 3: Cross multiply
    122,803.60x = 184,302.60 × 47,959.60
  4. Step 4: Simplify right side
    122,803.60x = 8,839,078,974.96
  5. Step 5: Solve for x
    x = 8,839,078,974.96/122,803.60
  6. Step 6: Final answer
    x = 71,977.36

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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.