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Finding the Fourth Proportional to 108,006.88, 161,991.63 and 48,828.79

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Solution

The fourth proportional to 108,006.88, 161,991.63 and 48,828.79 is: 73,234.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,006.88 : 161,991.63 = 48,828.79 : x
  2. Step 2: Convert to fraction form
    108,006.88/161,991.63 = 48,828.79/x
  3. Step 3: Cross multiply
    108,006.88x = 161,991.63 × 48,828.79
  4. Step 4: Simplify right side
    108,006.88x = 7,909,855,283.03
  5. Step 5: Solve for x
    x = 7,909,855,283.03/108,006.88
  6. Step 6: Final answer
    x = 73,234.74

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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.