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Finding the Fourth Proportional to 183,871.96, 275,918.12 and 78,691.04

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Solution

The fourth proportional to 183,871.96, 275,918.12 and 78,691.04 is: 118,083.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,871.96 : 275,918.12 = 78,691.04 : x
  2. Step 2: Convert to fraction form
    183,871.96/275,918.12 = 78,691.04/x
  3. Step 3: Cross multiply
    183,871.96x = 275,918.12 × 78,691.04
  4. Step 4: Simplify right side
    183,871.96x = 21,712,283,817.64
  5. Step 5: Solve for x
    x = 21,712,283,817.64/183,871.96
  6. Step 6: Final answer
    x = 118,083.71

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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.