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Finding the Fourth Proportional to 360,843.92, 541,386.08 and 120,981.54

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Solution

The fourth proportional to 360,843.92, 541,386.08 and 120,981.54 is: 181,512.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,843.92 : 541,386.08 = 120,981.54 : x
  2. Step 2: Convert to fraction form
    360,843.92/541,386.08 = 120,981.54/x
  3. Step 3: Cross multiply
    360,843.92x = 541,386.08 × 120,981.54
  4. Step 4: Simplify right side
    360,843.92x = 65,497,721,088.06
  5. Step 5: Solve for x
    x = 65,497,721,088.06/360,843.92
  6. Step 6: Final answer
    x = 181,512.61

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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.