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Finding the Fourth Proportional to 148,583.92, 204,995.92 and 84,876.60

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Solution

The fourth proportional to 148,583.92, 204,995.92 and 84,876.60 is: 117,101.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,583.92 : 204,995.92 = 84,876.60 : x
  2. Step 2: Convert to fraction form
    148,583.92/204,995.92 = 84,876.60/x
  3. Step 3: Cross multiply
    148,583.92x = 204,995.92 × 84,876.60
  4. Step 4: Simplify right side
    148,583.92x = 17,399,356,703.47
  5. Step 5: Solve for x
    x = 17,399,356,703.47/148,583.92
  6. Step 6: Final answer
    x = 117,101.21

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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.