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Finding the Fourth Proportional to 114,129.37, 171,101.28 and 47,619.06

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Solution

The fourth proportional to 114,129.37, 171,101.28 and 47,619.06 is: 71,389.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,129.37 : 171,101.28 = 47,619.06 : x
  2. Step 2: Convert to fraction form
    114,129.37/171,101.28 = 47,619.06/x
  3. Step 3: Cross multiply
    114,129.37x = 171,101.28 × 47,619.06
  4. Step 4: Simplify right side
    114,129.37x = 8,147,682,118.40
  5. Step 5: Solve for x
    x = 8,147,682,118.40/114,129.37
  6. Step 6: Final answer
    x = 71,389.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.