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Finding the Fourth Proportional to 75,245.83, 112,868.94 and 30,873.22

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Solution

The fourth proportional to 75,245.83, 112,868.94 and 30,873.22 is: 46,309.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,245.83 : 112,868.94 = 30,873.22 : x
  2. Step 2: Convert to fraction form
    75,245.83/112,868.94 = 30,873.22/x
  3. Step 3: Cross multiply
    75,245.83x = 112,868.94 × 30,873.22
  4. Step 4: Simplify right side
    75,245.83x = 3,484,627,449.39
  5. Step 5: Solve for x
    x = 3,484,627,449.39/75,245.83
  6. Step 6: Final answer
    x = 46,309.91

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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.