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Finding the Fourth Proportional to 172,994.80, 259,443.60 and 54,702.40

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Solution

The fourth proportional to 172,994.80, 259,443.60 and 54,702.40 is: 82,038.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,994.80 : 259,443.60 = 54,702.40 : x
  2. Step 2: Convert to fraction form
    172,994.80/259,443.60 = 54,702.40/x
  3. Step 3: Cross multiply
    172,994.80x = 259,443.60 × 54,702.40
  4. Step 4: Simplify right side
    172,994.80x = 14,192,187,584.64
  5. Step 5: Solve for x
    x = 14,192,187,584.64/172,994.80
  6. Step 6: Final answer
    x = 82,038.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.