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Finding the Fourth Proportional to 350,013.60, 524,674.80 and 172,375.20

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Solution

The fourth proportional to 350,013.60, 524,674.80 and 172,375.20 is: 258,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,013.60 : 524,674.80 = 172,375.20 : x
  2. Step 2: Convert to fraction form
    350,013.60/524,674.80 = 172,375.20/x
  3. Step 3: Cross multiply
    350,013.60x = 524,674.80 × 172,375.20
  4. Step 4: Simplify right side
    350,013.60x = 90,440,923,584.96
  5. Step 5: Solve for x
    x = 90,440,923,584.96/350,013.60
  6. Step 6: Final answer
    x = 258,392.60

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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.