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Finding the Fourth Proportional to 350,704.20, 525,710.70 and 173,238.60

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Solution

The fourth proportional to 350,704.20, 525,710.70 and 173,238.60 is: 259,687.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,704.20 : 525,710.70 = 173,238.60 : x
  2. Step 2: Convert to fraction form
    350,704.20/525,710.70 = 173,238.60/x
  3. Step 3: Cross multiply
    350,704.20x = 525,710.70 × 173,238.60
  4. Step 4: Simplify right side
    350,704.20x = 91,073,385,673.02
  5. Step 5: Solve for x
    x = 91,073,385,673.02/350,704.20
  6. Step 6: Final answer
    x = 259,687.18

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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.