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Finding the Fourth Proportional to 210,016.44, 315,026.46 and 67,883.31

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Solution

The fourth proportional to 210,016.44, 315,026.46 and 67,883.31 is: 101,825.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,016.44 : 315,026.46 = 67,883.31 : x
  2. Step 2: Convert to fraction form
    210,016.44/315,026.46 = 67,883.31/x
  3. Step 3: Cross multiply
    210,016.44x = 315,026.46 × 67,883.31
  4. Step 4: Simplify right side
    210,016.44x = 21,385,038,842.38
  5. Step 5: Solve for x
    x = 21,385,038,842.38/210,016.44
  6. Step 6: Final answer
    x = 101,825.55

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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.