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Finding the Fourth Proportional to 127,249.88, 190,625.14 and 103,582.88

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Solution

The fourth proportional to 127,249.88, 190,625.14 and 103,582.88 is: 155,171.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,249.88 : 190,625.14 = 103,582.88 : x
  2. Step 2: Convert to fraction form
    127,249.88/190,625.14 = 103,582.88/x
  3. Step 3: Cross multiply
    127,249.88x = 190,625.14 × 103,582.88
  4. Step 4: Simplify right side
    127,249.88x = 19,745,501,001.60
  5. Step 5: Solve for x
    x = 19,745,501,001.60/127,249.88
  6. Step 6: Final answer
    x = 155,171.08

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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.