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Finding the Fourth Proportional to 176,650.63, 265,002.21 and 81,890.39

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Solution

The fourth proportional to 176,650.63, 265,002.21 and 81,890.39 is: 122,847.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,650.63 : 265,002.21 = 81,890.39 : x
  2. Step 2: Convert to fraction form
    176,650.63/265,002.21 = 81,890.39/x
  3. Step 3: Cross multiply
    176,650.63x = 265,002.21 × 81,890.39
  4. Step 4: Simplify right side
    176,650.63x = 21,701,134,759.95
  5. Step 5: Solve for x
    x = 21,701,134,759.95/176,650.63
  6. Step 6: Final answer
    x = 122,847.76

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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.