Home / 352,131.20-528,196.80-115,416.80

Finding the Fourth Proportional to 352,131.20, 528,196.80 and 115,416.80

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Solution

The fourth proportional to 352,131.20, 528,196.80 and 115,416.80 is: 173,125.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,131.20 : 528,196.80 = 115,416.80 : x
  2. Step 2: Convert to fraction form
    352,131.20/528,196.80 = 115,416.80/x
  3. Step 3: Cross multiply
    352,131.20x = 528,196.80 × 115,416.80
  4. Step 4: Simplify right side
    352,131.20x = 60,962,784,426.24
  5. Step 5: Solve for x
    x = 60,962,784,426.24/352,131.20
  6. Step 6: Final answer
    x = 173,125.20

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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.