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Finding the Fourth Proportional to 185,009.55, 255,313.20 and 100,126.62

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Solution

The fourth proportional to 185,009.55, 255,313.20 and 100,126.62 is: 138,174.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,009.55 : 255,313.20 = 100,126.62 : x
  2. Step 2: Convert to fraction form
    185,009.55/255,313.20 = 100,126.62/x
  3. Step 3: Cross multiply
    185,009.55x = 255,313.20 × 100,126.62
  4. Step 4: Simplify right side
    185,009.55x = 25,563,647,757.38
  5. Step 5: Solve for x
    x = 25,563,647,757.38/185,009.55
  6. Step 6: Final answer
    x = 138,174.75

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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.