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Finding the Fourth Proportional to 272,866.48, 409,555.68 and 167,890.48

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Solution

The fourth proportional to 272,866.48, 409,555.68 and 167,890.48 is: 251,993.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,866.48 : 409,555.68 = 167,890.48 : x
  2. Step 2: Convert to fraction form
    272,866.48/409,555.68 = 167,890.48/x
  3. Step 3: Cross multiply
    272,866.48x = 409,555.68 × 167,890.48
  4. Step 4: Simplify right side
    272,866.48x = 68,760,499,701.93
  5. Step 5: Solve for x
    x = 68,760,499,701.93/272,866.48
  6. Step 6: Final answer
    x = 251,993.21

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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.