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Finding the Fourth Proportional to 136,273.34, 188,055.87 and 75,842.96

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Solution

The fourth proportional to 136,273.34, 188,055.87 and 75,842.96 is: 104,662.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,273.34 : 188,055.87 = 75,842.96 : x
  2. Step 2: Convert to fraction form
    136,273.34/188,055.87 = 75,842.96/x
  3. Step 3: Cross multiply
    136,273.34x = 188,055.87 × 75,842.96
  4. Step 4: Simplify right side
    136,273.34x = 14,262,713,826.18
  5. Step 5: Solve for x
    x = 14,262,713,826.18/136,273.34
  6. Step 6: Final answer
    x = 104,662.54

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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.