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Finding the Fourth Proportional to 115,232.40, 172,819.80 and 44,139.60

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Solution

The fourth proportional to 115,232.40, 172,819.80 and 44,139.60 is: 66,198.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,232.40 : 172,819.80 = 44,139.60 : x
  2. Step 2: Convert to fraction form
    115,232.40/172,819.80 = 44,139.60/x
  3. Step 3: Cross multiply
    115,232.40x = 172,819.80 × 44,139.60
  4. Step 4: Simplify right side
    115,232.40x = 7,628,196,844.08
  5. Step 5: Solve for x
    x = 7,628,196,844.08/115,232.40
  6. Step 6: Final answer
    x = 66,198.37

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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.