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Finding the Fourth Proportional to 92,005.64, 138,021.60 and 32,828.84

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Solution

The fourth proportional to 92,005.64, 138,021.60 and 32,828.84 is: 49,247.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,005.64 : 138,021.60 = 32,828.84 : x
  2. Step 2: Convert to fraction form
    92,005.64/138,021.60 = 32,828.84/x
  3. Step 3: Cross multiply
    92,005.64x = 138,021.60 × 32,828.84
  4. Step 4: Simplify right side
    92,005.64x = 4,531,089,022.94
  5. Step 5: Solve for x
    x = 4,531,089,022.94/92,005.64
  6. Step 6: Final answer
    x = 49,247.95

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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.