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Finding the Fourth Proportional to 133,868.06, 200,770.88 and 39,078.32

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Solution

The fourth proportional to 133,868.06, 200,770.88 and 39,078.32 is: 58,608.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,868.06 : 200,770.88 = 39,078.32 : x
  2. Step 2: Convert to fraction form
    133,868.06/200,770.88 = 39,078.32/x
  3. Step 3: Cross multiply
    133,868.06x = 200,770.88 × 39,078.32
  4. Step 4: Simplify right side
    133,868.06x = 7,845,788,695.32
  5. Step 5: Solve for x
    x = 7,845,788,695.32/133,868.06
  6. Step 6: Final answer
    x = 58,608.37

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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.