Home / 352,022.20-528,033.30-115,307.80

Finding the Fourth Proportional to 352,022.20, 528,033.30 and 115,307.80

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Solution

The fourth proportional to 352,022.20, 528,033.30 and 115,307.80 is: 172,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,022.20 : 528,033.30 = 115,307.80 : x
  2. Step 2: Convert to fraction form
    352,022.20/528,033.30 = 115,307.80/x
  3. Step 3: Cross multiply
    352,022.20x = 528,033.30 × 115,307.80
  4. Step 4: Simplify right side
    352,022.20x = 60,886,358,149.74
  5. Step 5: Solve for x
    x = 60,886,358,149.74/352,022.20
  6. Step 6: Final answer
    x = 172,961.70

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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.