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Finding the Fourth Proportional to 84,890.57, 117,154.04 and 49,093.02

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Solution

The fourth proportional to 84,890.57, 117,154.04 and 49,093.02 is: 67,751.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,890.57 : 117,154.04 = 49,093.02 : x
  2. Step 2: Convert to fraction form
    84,890.57/117,154.04 = 49,093.02/x
  3. Step 3: Cross multiply
    84,890.57x = 117,154.04 × 49,093.02
  4. Step 4: Simplify right side
    84,890.57x = 5,751,445,383.34
  5. Step 5: Solve for x
    x = 5,751,445,383.34/84,890.57
  6. Step 6: Final answer
    x = 67,751.29

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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.