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Finding the Fourth Proportional to 75,080.56, 112,766.64 and 55,280.92

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Solution

The fourth proportional to 75,080.56, 112,766.64 and 55,280.92 is: 83,028.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,080.56 : 112,766.64 = 55,280.92 : x
  2. Step 2: Convert to fraction form
    75,080.56/112,766.64 = 55,280.92/x
  3. Step 3: Cross multiply
    75,080.56x = 112,766.64 × 55,280.92
  4. Step 4: Simplify right side
    75,080.56x = 6,233,843,604.51
  5. Step 5: Solve for x
    x = 6,233,843,604.51/75,080.56
  6. Step 6: Final answer
    x = 83,028.73

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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.