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Finding the Fourth Proportional to 188,930.76, 260,724.74 and 104,047.88

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Solution

The fourth proportional to 188,930.76, 260,724.74 and 104,047.88 is: 143,586.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,930.76 : 260,724.74 = 104,047.88 : x
  2. Step 2: Convert to fraction form
    188,930.76/260,724.74 = 104,047.88/x
  3. Step 3: Cross multiply
    188,930.76x = 260,724.74 × 104,047.88
  4. Step 4: Simplify right side
    188,930.76x = 27,127,856,460.55
  5. Step 5: Solve for x
    x = 27,127,856,460.55/188,930.76
  6. Step 6: Final answer
    x = 143,586.23

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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.