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Finding the Fourth Proportional to 148,521.88, 204,960.56 and 84,859.48

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Solution

The fourth proportional to 148,521.88, 204,960.56 and 84,859.48 is: 117,106.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,521.88 : 204,960.56 = 84,859.48 : x
  2. Step 2: Convert to fraction form
    148,521.88/204,960.56 = 84,859.48/x
  3. Step 3: Cross multiply
    148,521.88x = 204,960.56 × 84,859.48
  4. Step 4: Simplify right side
    148,521.88x = 17,392,846,542.11
  5. Step 5: Solve for x
    x = 17,392,846,542.11/148,521.88
  6. Step 6: Final answer
    x = 117,106.29

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1.5x scale

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.