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Finding the Fourth Proportional to 122,912.40, 184,368.60 and 63,863.40

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Solution

The fourth proportional to 122,912.40, 184,368.60 and 63,863.40 is: 95,795.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,912.40 : 184,368.60 = 63,863.40 : x
  2. Step 2: Convert to fraction form
    122,912.40/184,368.60 = 63,863.40/x
  3. Step 3: Cross multiply
    122,912.40x = 184,368.60 × 63,863.40
  4. Step 4: Simplify right side
    122,912.40x = 11,774,405,649.24
  5. Step 5: Solve for x
    x = 11,774,405,649.24/122,912.40
  6. Step 6: Final answer
    x = 95,795.10

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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.