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Finding the Fourth Proportional to 200,357.76, 276,474.56 and 119,769.28

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Solution

The fourth proportional to 200,357.76, 276,474.56 and 119,769.28 is: 165,270.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,357.76 : 276,474.56 = 119,769.28 : x
  2. Step 2: Convert to fraction form
    200,357.76/276,474.56 = 119,769.28/x
  3. Step 3: Cross multiply
    200,357.76x = 276,474.56 × 119,769.28
  4. Step 4: Simplify right side
    200,357.76x = 33,113,158,989.52
  5. Step 5: Solve for x
    x = 33,113,158,989.52/200,357.76
  6. Step 6: Final answer
    x = 165,270.16

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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.