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Finding the Fourth Proportional to 350,486.40, 525,729.60 and 113,836.80

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Solution

The fourth proportional to 350,486.40, 525,729.60 and 113,836.80 is: 170,755.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,486.40 : 525,729.60 = 113,836.80 : x
  2. Step 2: Convert to fraction form
    350,486.40/525,729.60 = 113,836.80/x
  3. Step 3: Cross multiply
    350,486.40x = 525,729.60 × 113,836.80
  4. Step 4: Simplify right side
    350,486.40x = 59,847,375,329.28
  5. Step 5: Solve for x
    x = 59,847,375,329.28/350,486.40
  6. Step 6: Final answer
    x = 170,755.20

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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.