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Finding the Fourth Proportional to 276,327, 381,331.26 and 157,095

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Solution

The fourth proportional to 276,327, 381,331.26 and 157,095 is: 216,791.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,327 : 381,331.26 = 157,095 : x
  2. Step 2: Convert to fraction form
    276,327/381,331.26 = 157,095/x
  3. Step 3: Cross multiply
    276,327x = 381,331.26 × 157,095
  4. Step 4: Simplify right side
    276,327x = 59,905,234,289.70
  5. Step 5: Solve for x
    x = 59,905,234,289.70/276,327
  6. Step 6: Final answer
    x = 216,791.10

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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.