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Finding the Fourth Proportional to 184,218.92, 254,202.90 and 103,639.60

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Solution

The fourth proportional to 184,218.92, 254,202.90 and 103,639.60 is: 143,011.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,218.92 : 254,202.90 = 103,639.60 : x
  2. Step 2: Convert to fraction form
    184,218.92/254,202.90 = 103,639.60/x
  3. Step 3: Cross multiply
    184,218.92x = 254,202.90 × 103,639.60
  4. Step 4: Simplify right side
    184,218.92x = 26,345,486,874.84
  5. Step 5: Solve for x
    x = 26,345,486,874.84/184,218.92
  6. Step 6: Final answer
    x = 143,011.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.