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Finding the Fourth Proportional to 179,790.80, 269,621.40 and 91,014.80

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Solution

The fourth proportional to 179,790.80, 269,621.40 and 91,014.80 is: 136,489.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,790.80 : 269,621.40 = 91,014.80 : x
  2. Step 2: Convert to fraction form
    179,790.80/269,621.40 = 91,014.80/x
  3. Step 3: Cross multiply
    179,790.80x = 269,621.40 × 91,014.80
  4. Step 4: Simplify right side
    179,790.80x = 24,539,537,796.72
  5. Step 5: Solve for x
    x = 24,539,537,796.72/179,790.80
  6. Step 6: Final answer
    x = 136,489.40

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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.