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Finding the Fourth Proportional to 185,647.98, 256,194.42 and 100,765.02

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Solution

The fourth proportional to 185,647.98, 256,194.42 and 100,765.02 is: 139,055.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,647.98 : 256,194.42 = 100,765.02 : x
  2. Step 2: Convert to fraction form
    185,647.98/256,194.42 = 100,765.02/x
  3. Step 3: Cross multiply
    185,647.98x = 256,194.42 × 100,765.02
  4. Step 4: Simplify right side
    185,647.98x = 25,815,435,855.19
  5. Step 5: Solve for x
    x = 25,815,435,855.19/185,647.98
  6. Step 6: Final answer
    x = 139,055.84

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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.