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Finding the Fourth Proportional to 184,998.28, 255,298.28 and 100,115.32

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Solution

The fourth proportional to 184,998.28, 255,298.28 and 100,115.32 is: 138,159.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,998.28 : 255,298.28 = 100,115.32 : x
  2. Step 2: Convert to fraction form
    184,998.28/255,298.28 = 100,115.32/x
  3. Step 3: Cross multiply
    184,998.28x = 255,298.28 × 100,115.32
  4. Step 4: Simplify right side
    184,998.28x = 25,559,268,997.65
  5. Step 5: Solve for x
    x = 25,559,268,997.65/184,998.28
  6. Step 6: Final answer
    x = 138,159.50

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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.