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Finding the Fourth Proportional to 136,881.58, 205,329.73 and 43,394.62

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Solution

The fourth proportional to 136,881.58, 205,329.73 and 43,394.62 is: 65,094.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,881.58 : 205,329.73 = 43,394.62 : x
  2. Step 2: Convert to fraction form
    136,881.58/205,329.73 = 43,394.62/x
  3. Step 3: Cross multiply
    136,881.58x = 205,329.73 × 43,394.62
  4. Step 4: Simplify right side
    136,881.58x = 8,910,205,608.05
  5. Step 5: Solve for x
    x = 8,910,205,608.05/136,881.58
  6. Step 6: Final answer
    x = 65,094.26

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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.