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Finding the Fourth Proportional to 185,647.48, 256,193.73 and 100,764.52

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Solution

The fourth proportional to 185,647.48, 256,193.73 and 100,764.52 is: 139,055.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,647.48 : 256,193.73 = 100,764.52 : x
  2. Step 2: Convert to fraction form
    185,647.48/256,193.73 = 100,764.52/x
  3. Step 3: Cross multiply
    185,647.48x = 256,193.73 × 100,764.52
  4. Step 4: Simplify right side
    185,647.48x = 25,815,238,230.46
  5. Step 5: Solve for x
    x = 25,815,238,230.46/185,647.48
  6. Step 6: Final answer
    x = 139,055.15

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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.