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Finding the Fourth Proportional to 274,334.76, 378,592.74 and 161,156.52

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Solution

The fourth proportional to 274,334.76, 378,592.74 and 161,156.52 is: 222,402.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,334.76 : 378,592.74 = 161,156.52 : x
  2. Step 2: Convert to fraction form
    274,334.76/378,592.74 = 161,156.52/x
  3. Step 3: Cross multiply
    274,334.76x = 378,592.74 × 161,156.52
  4. Step 4: Simplify right side
    274,334.76x = 61,012,688,475.66
  5. Step 5: Solve for x
    x = 61,012,688,475.66/274,334.76
  6. Step 6: Final answer
    x = 222,402.33

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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.