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Finding the Fourth Proportional to 351,975.69, 486,127.38 and 238,601.61

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Solution

The fourth proportional to 351,975.69, 486,127.38 and 238,601.61 is: 329,542.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,975.69 : 486,127.38 = 238,601.61 : x
  2. Step 2: Convert to fraction form
    351,975.69/486,127.38 = 238,601.61/x
  3. Step 3: Cross multiply
    351,975.69x = 486,127.38 × 238,601.61
  4. Step 4: Simplify right side
    351,975.69x = 115,990,775,533.08
  5. Step 5: Solve for x
    x = 115,990,775,533.08/351,975.69
  6. Step 6: Final answer
    x = 329,542.01

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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.