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Finding the Fourth Proportional to 235,625.58, 353,449.71 and 77,850.54

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Solution

The fourth proportional to 235,625.58, 353,449.71 and 77,850.54 is: 116,779.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,625.58 : 353,449.71 = 77,850.54 : x
  2. Step 2: Convert to fraction form
    235,625.58/353,449.71 = 77,850.54/x
  3. Step 3: Cross multiply
    235,625.58x = 353,449.71 × 77,850.54
  4. Step 4: Simplify right side
    235,625.58x = 27,516,250,786.34
  5. Step 5: Solve for x
    x = 27,516,250,786.34/235,625.58
  6. Step 6: Final answer
    x = 116,779.56

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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.