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Finding the Fourth Proportional to 118,855.02, 178,170.89 and 39,913.89

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Solution

The fourth proportional to 118,855.02, 178,170.89 and 39,913.89 is: 59,833.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,855.02 : 178,170.89 = 39,913.89 : x
  2. Step 2: Convert to fraction form
    118,855.02/178,170.89 = 39,913.89/x
  3. Step 3: Cross multiply
    118,855.02x = 178,170.89 × 39,913.89
  4. Step 4: Simplify right side
    118,855.02x = 7,111,493,105.09
  5. Step 5: Solve for x
    x = 7,111,493,105.09/118,855.02
  6. Step 6: Final answer
    x = 59,833.34

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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.