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Finding the Fourth Proportional to 148,539.96, 204,974.55 and 84,008.88

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Solution

The fourth proportional to 148,539.96, 204,974.55 and 84,008.88 is: 115,926.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,539.96 : 204,974.55 = 84,008.88 : x
  2. Step 2: Convert to fraction form
    148,539.96/204,974.55 = 84,008.88/x
  3. Step 3: Cross multiply
    148,539.96x = 204,974.55 × 84,008.88
  4. Step 4: Simplify right side
    148,539.96x = 17,219,682,374.00
  5. Step 5: Solve for x
    x = 17,219,682,374.00/148,539.96
  6. Step 6: Final answer
    x = 115,926.26

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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.