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Finding the Fourth Proportional to 148,402.45, 204,866.31 and 84,727.95

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Solution

The fourth proportional to 148,402.45, 204,866.31 and 84,727.95 is: 116,965.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,402.45 : 204,866.31 = 84,727.95 : x
  2. Step 2: Convert to fraction form
    148,402.45/204,866.31 = 84,727.95/x
  3. Step 3: Cross multiply
    148,402.45x = 204,866.31 × 84,727.95
  4. Step 4: Simplify right side
    148,402.45x = 17,357,902,470.36
  5. Step 5: Solve for x
    x = 17,357,902,470.36/148,402.45
  6. Step 6: Final answer
    x = 116,965.07

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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.