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Finding the Fourth Proportional to 269,061.75, 371,305.22 and 155,950.11

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Solution

The fourth proportional to 269,061.75, 371,305.22 and 155,950.11 is: 215,211.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,061.75 : 371,305.22 = 155,950.11 : x
  2. Step 2: Convert to fraction form
    269,061.75/371,305.22 = 155,950.11/x
  3. Step 3: Cross multiply
    269,061.75x = 371,305.22 × 155,950.11
  4. Step 4: Simplify right side
    269,061.75x = 57,905,089,122.82
  5. Step 5: Solve for x
    x = 57,905,089,122.82/269,061.75
  6. Step 6: Final answer
    x = 215,211.15

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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.