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Finding the Fourth Proportional to 353,169.90, 529,743.15 and 153,490.53

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Solution

The fourth proportional to 353,169.90, 529,743.15 and 153,490.53 is: 230,230.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,169.90 : 529,743.15 = 153,490.53 : x
  2. Step 2: Convert to fraction form
    353,169.90/529,743.15 = 153,490.53/x
  3. Step 3: Cross multiply
    353,169.90x = 529,743.15 × 153,490.53
  4. Step 4: Simplify right side
    353,169.90x = 81,310,556,857.37
  5. Step 5: Solve for x
    x = 81,310,556,857.37/353,169.90
  6. Step 6: Final answer
    x = 230,230.71

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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.