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Finding the Fourth Proportional to 148,456.98, 204,872.90 and 84,794.90

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Solution

The fourth proportional to 148,456.98, 204,872.90 and 84,794.90 is: 117,018.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,456.98 : 204,872.90 = 84,794.90 : x
  2. Step 2: Convert to fraction form
    148,456.98/204,872.90 = 84,794.90/x
  3. Step 3: Cross multiply
    148,456.98x = 204,872.90 × 84,794.90
  4. Step 4: Simplify right side
    148,456.98x = 17,372,175,619.87
  5. Step 5: Solve for x
    x = 17,372,175,619.87/148,456.98
  6. Step 6: Final answer
    x = 117,018.25

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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.