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Finding the Fourth Proportional to 184,998.81, 255,299.16 and 100,115.88

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Solution

The fourth proportional to 184,998.81, 255,299.16 and 100,115.88 is: 138,160.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,998.81 : 255,299.16 = 100,115.88 : x
  2. Step 2: Convert to fraction form
    184,998.81/255,299.16 = 100,115.88/x
  3. Step 3: Cross multiply
    184,998.81x = 255,299.16 × 100,115.88
  4. Step 4: Simplify right side
    184,998.81x = 25,559,500,066.66
  5. Step 5: Solve for x
    x = 25,559,500,066.66/184,998.81
  6. Step 6: Final answer
    x = 138,160.35

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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.