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Finding the Fourth Proportional to 172,731.26, 259,075.02 and 60,406.94

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Solution

The fourth proportional to 172,731.26, 259,075.02 and 60,406.94 is: 90,602.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,731.26 : 259,075.02 = 60,406.94 : x
  2. Step 2: Convert to fraction form
    172,731.26/259,075.02 = 60,406.94/x
  3. Step 3: Cross multiply
    172,731.26x = 259,075.02 × 60,406.94
  4. Step 4: Simplify right side
    172,731.26x = 15,649,929,188.64
  5. Step 5: Solve for x
    x = 15,649,929,188.64/172,731.26
  6. Step 6: Final answer
    x = 90,602.76

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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.