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Finding the Fourth Proportional to 173,075.40, 259,418.70 and 73,218.60

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Solution

The fourth proportional to 173,075.40, 259,418.70 and 73,218.60 is: 109,745.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,075.40 : 259,418.70 = 73,218.60 : x
  2. Step 2: Convert to fraction form
    173,075.40/259,418.70 = 73,218.60/x
  3. Step 3: Cross multiply
    173,075.40x = 259,418.70 × 73,218.60
  4. Step 4: Simplify right side
    173,075.40x = 18,994,274,027.82
  5. Step 5: Solve for x
    x = 18,994,274,027.82/173,075.40
  6. Step 6: Final answer
    x = 109,745.66

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1.5x scale

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.