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Finding the Fourth Proportional to 188,062.48, 259,526.46 and 103,179.88

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Solution

The fourth proportional to 188,062.48, 259,526.46 and 103,179.88 is: 142,388.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,062.48 : 259,526.46 = 103,179.88 : x
  2. Step 2: Convert to fraction form
    188,062.48/259,526.46 = 103,179.88/x
  3. Step 3: Cross multiply
    188,062.48x = 259,526.46 × 103,179.88
  4. Step 4: Simplify right side
    188,062.48x = 26,777,908,999.62
  5. Step 5: Solve for x
    x = 26,777,908,999.62/188,062.48
  6. Step 6: Final answer
    x = 142,388.36

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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.