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Finding the Fourth Proportional to 184,869, 255,119.31 and 99,986.04

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Solution

The fourth proportional to 184,869, 255,119.31 and 99,986.04 is: 137,980.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,869 : 255,119.31 = 99,986.04 : x
  2. Step 2: Convert to fraction form
    184,869/255,119.31 = 99,986.04/x
  3. Step 3: Cross multiply
    184,869x = 255,119.31 × 99,986.04
  4. Step 4: Simplify right side
    184,869x = 25,508,369,534.43
  5. Step 5: Solve for x
    x = 25,508,369,534.43/184,869
  6. Step 6: Final answer
    x = 137,980.78

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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.