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Finding the Fourth Proportional to 230,716.80, 346,075.20 and 72,993.60

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Solution

The fourth proportional to 230,716.80, 346,075.20 and 72,993.60 is: 109,490.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,716.80 : 346,075.20 = 72,993.60 : x
  2. Step 2: Convert to fraction form
    230,716.80/346,075.20 = 72,993.60/x
  3. Step 3: Cross multiply
    230,716.80x = 346,075.20 × 72,993.60
  4. Step 4: Simplify right side
    230,716.80x = 25,261,274,718.72
  5. Step 5: Solve for x
    x = 25,261,274,718.72/230,716.80
  6. Step 6: Final answer
    x = 109,490.40

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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.