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Finding the Fourth Proportional to 122,859.60, 184,386.60 and 48,015.60

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Solution

The fourth proportional to 122,859.60, 184,386.60 and 48,015.60 is: 72,061.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,859.60 : 184,386.60 = 48,015.60 : x
  2. Step 2: Convert to fraction form
    122,859.60/184,386.60 = 48,015.60/x
  3. Step 3: Cross multiply
    122,859.60x = 184,386.60 × 48,015.60
  4. Step 4: Simplify right side
    122,859.60x = 8,853,433,230.96
  5. Step 5: Solve for x
    x = 8,853,433,230.96/122,859.60
  6. Step 6: Final answer
    x = 72,061.39

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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.