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Finding the Fourth Proportional to 386,750.36, 580,153.46 and 161,884.52

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Solution

The fourth proportional to 386,750.36, 580,153.46 and 161,884.52 is: 242,838.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,750.36 : 580,153.46 = 161,884.52 : x
  2. Step 2: Convert to fraction form
    386,750.36/580,153.46 = 161,884.52/x
  3. Step 3: Cross multiply
    386,750.36x = 580,153.46 × 161,884.52
  4. Step 4: Simplify right side
    386,750.36x = 93,917,864,398.44
  5. Step 5: Solve for x
    x = 93,917,864,398.44/386,750.36
  6. Step 6: Final answer
    x = 242,838.47

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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.