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Finding the Fourth Proportional to 186,897.56, 280,179.61 and 68,541.44

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Solution

The fourth proportional to 186,897.56, 280,179.61 and 68,541.44 is: 102,751.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,897.56 : 280,179.61 = 68,541.44 : x
  2. Step 2: Convert to fraction form
    186,897.56/280,179.61 = 68,541.44/x
  3. Step 3: Cross multiply
    186,897.56x = 280,179.61 × 68,541.44
  4. Step 4: Simplify right side
    186,897.56x = 19,203,912,355.79
  5. Step 5: Solve for x
    x = 19,203,912,355.79/186,897.56
  6. Step 6: Final answer
    x = 102,751.01

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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.