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Finding the Fourth Proportional to 172,991, 259,602.96 and 60,672.26

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Solution

The fourth proportional to 172,991, 259,602.96 and 60,672.26 is: 91,049.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,991 : 259,602.96 = 60,672.26 : x
  2. Step 2: Convert to fraction form
    172,991/259,602.96 = 60,672.26/x
  3. Step 3: Cross multiply
    172,991x = 259,602.96 × 60,672.26
  4. Step 4: Simplify right side
    172,991x = 15,750,698,285.89
  5. Step 5: Solve for x
    x = 15,750,698,285.89/172,991
  6. Step 6: Final answer
    x = 91,049.24

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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.