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Finding the Fourth Proportional to 190,362.96, 262,702.44 and 105,481.44

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Solution

The fourth proportional to 190,362.96, 262,702.44 and 105,481.44 is: 145,565.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,362.96 : 262,702.44 = 105,481.44 : x
  2. Step 2: Convert to fraction form
    190,362.96/262,702.44 = 105,481.44/x
  3. Step 3: Cross multiply
    190,362.96x = 262,702.44 × 105,481.44
  4. Step 4: Simplify right side
    190,362.96x = 27,710,231,662.71
  5. Step 5: Solve for x
    x = 27,710,231,662.71/190,362.96
  6. Step 6: Final answer
    x = 145,565.25

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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.