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Finding the Fourth Proportional to 108,398.77, 162,486.97 and 41,812.72

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Solution

The fourth proportional to 108,398.77, 162,486.97 and 41,812.72 is: 62,676.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,398.77 : 162,486.97 = 41,812.72 : x
  2. Step 2: Convert to fraction form
    108,398.77/162,486.97 = 41,812.72/x
  3. Step 3: Cross multiply
    108,398.77x = 162,486.97 × 41,812.72
  4. Step 4: Simplify right side
    108,398.77x = 6,794,021,669.51
  5. Step 5: Solve for x
    x = 6,794,021,669.51/108,398.77
  6. Step 6: Final answer
    x = 62,676.19

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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.