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Finding the Fourth Proportional to 184,874, 255,126.21 and 99,991.04

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Solution

The fourth proportional to 184,874, 255,126.21 and 99,991.04 is: 137,987.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,874 : 255,126.21 = 99,991.04 : x
  2. Step 2: Convert to fraction form
    184,874/255,126.21 = 99,991.04/x
  3. Step 3: Cross multiply
    184,874x = 255,126.21 × 99,991.04
  4. Step 4: Simplify right side
    184,874x = 25,510,335,069.16
  5. Step 5: Solve for x
    x = 25,510,335,069.16/184,874
  6. Step 6: Final answer
    x = 137,987.68

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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.