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Finding the Fourth Proportional to 184,003.60, 275,908.20 and 78,703.60

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Solution

The fourth proportional to 184,003.60, 275,908.20 and 78,703.60 is: 118,013.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,003.60 : 275,908.20 = 78,703.60 : x
  2. Step 2: Convert to fraction form
    184,003.60/275,908.20 = 78,703.60/x
  3. Step 3: Cross multiply
    184,003.60x = 275,908.20 × 78,703.60
  4. Step 4: Simplify right side
    184,003.60x = 21,714,968,609.52
  5. Step 5: Solve for x
    x = 21,714,968,609.52/184,003.60
  6. Step 6: Final answer
    x = 118,013.82

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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.