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Finding the Fourth Proportional to 200,657.31, 276,930.08 and 114,629.82

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Solution

The fourth proportional to 200,657.31, 276,930.08 and 114,629.82 is: 158,202.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,657.31 : 276,930.08 = 114,629.82 : x
  2. Step 2: Convert to fraction form
    200,657.31/276,930.08 = 114,629.82/x
  3. Step 3: Cross multiply
    200,657.31x = 276,930.08 × 114,629.82
  4. Step 4: Simplify right side
    200,657.31x = 31,744,445,222.99
  5. Step 5: Solve for x
    x = 31,744,445,222.99/200,657.31
  6. Step 6: Final answer
    x = 158,202.29

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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.