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Finding the Fourth Proportional to 118,580.76, 177,828.30 and 39,676.54

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Solution

The fourth proportional to 118,580.76, 177,828.30 and 39,676.54 is: 59,500.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,580.76 : 177,828.30 = 39,676.54 : x
  2. Step 2: Convert to fraction form
    118,580.76/177,828.30 = 39,676.54/x
  3. Step 3: Cross multiply
    118,580.76x = 177,828.30 × 39,676.54
  4. Step 4: Simplify right side
    118,580.76x = 7,055,611,658.08
  5. Step 5: Solve for x
    x = 7,055,611,658.08/118,580.76
  6. Step 6: Final answer
    x = 59,500.48

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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.