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Finding the Fourth Proportional to 185,266.44, 255,670.63 and 103,603.86

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Solution

The fourth proportional to 185,266.44, 255,670.63 and 103,603.86 is: 142,974.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,266.44 : 255,670.63 = 103,603.86 : x
  2. Step 2: Convert to fraction form
    185,266.44/255,670.63 = 103,603.86/x
  3. Step 3: Cross multiply
    185,266.44x = 255,670.63 × 103,603.86
  4. Step 4: Simplify right side
    185,266.44x = 26,488,463,897.62
  5. Step 5: Solve for x
    x = 26,488,463,897.62/185,266.44
  6. Step 6: Final answer
    x = 142,974.97

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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.