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Finding the Fourth Proportional to 324,628.07, 447,978.33 and 181,389.29

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Solution

The fourth proportional to 324,628.07, 447,978.33 and 181,389.29 is: 250,312.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,628.07 : 447,978.33 = 181,389.29 : x
  2. Step 2: Convert to fraction form
    324,628.07/447,978.33 = 181,389.29/x
  3. Step 3: Cross multiply
    324,628.07x = 447,978.33 × 181,389.29
  4. Step 4: Simplify right side
    324,628.07x = 81,258,471,214.09
  5. Step 5: Solve for x
    x = 81,258,471,214.09/324,628.07
  6. Step 6: Final answer
    x = 250,312.52

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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.