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Finding the Fourth Proportional to 274,495.15, 411,696.02 and 74,768.82

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Solution

The fourth proportional to 274,495.15, 411,696.02 and 74,768.82 is: 112,140.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,495.15 : 411,696.02 = 74,768.82 : x
  2. Step 2: Convert to fraction form
    274,495.15/411,696.02 = 74,768.82/x
  3. Step 3: Cross multiply
    274,495.15x = 411,696.02 × 74,768.82
  4. Step 4: Simplify right side
    274,495.15x = 30,782,026,152.37
  5. Step 5: Solve for x
    x = 30,782,026,152.37/274,495.15
  6. Step 6: Final answer
    x = 112,140.51

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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.