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Finding the Fourth Proportional to 184,036.40, 276,119.40 and 78,887.60

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Solution

The fourth proportional to 184,036.40, 276,119.40 and 78,887.60 is: 118,359.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,036.40 : 276,119.40 = 78,887.60 : x
  2. Step 2: Convert to fraction form
    184,036.40/276,119.40 = 78,887.60/x
  3. Step 3: Cross multiply
    184,036.40x = 276,119.40 × 78,887.60
  4. Step 4: Simplify right side
    184,036.40x = 21,782,396,779.44
  5. Step 5: Solve for x
    x = 21,782,396,779.44/184,036.40
  6. Step 6: Final answer
    x = 118,359.18

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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.