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Finding the Fourth Proportional to 351,034.48, 484,426.92 and 189,889.66

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Solution

The fourth proportional to 351,034.48, 484,426.92 and 189,889.66 is: 262,047.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,034.48 : 484,426.92 = 189,889.66 : x
  2. Step 2: Convert to fraction form
    351,034.48/484,426.92 = 189,889.66/x
  3. Step 3: Cross multiply
    351,034.48x = 484,426.92 × 189,889.66
  4. Step 4: Simplify right side
    351,034.48x = 91,987,663,133.65
  5. Step 5: Solve for x
    x = 91,987,663,133.65/351,034.48
  6. Step 6: Final answer
    x = 262,047.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.