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Finding the Fourth Proportional to 279,052.98, 384,957.81 and 165,795.54

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Solution

The fourth proportional to 279,052.98, 384,957.81 and 165,795.54 is: 228,717.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,052.98 : 384,957.81 = 165,795.54 : x
  2. Step 2: Convert to fraction form
    279,052.98/384,957.81 = 165,795.54/x
  3. Step 3: Cross multiply
    279,052.98x = 384,957.81 × 165,795.54
  4. Step 4: Simplify right side
    279,052.98x = 63,824,287,986.17
  5. Step 5: Solve for x
    x = 63,824,287,986.17/279,052.98
  6. Step 6: Final answer
    x = 228,717.46

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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.