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Finding the Fourth Proportional to 90,884.68, 125,419.86 and 50,597.56

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Solution

The fourth proportional to 90,884.68, 125,419.86 and 50,597.56 is: 69,824.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,884.68 : 125,419.86 = 50,597.56 : x
  2. Step 2: Convert to fraction form
    90,884.68/125,419.86 = 50,597.56/x
  3. Step 3: Cross multiply
    90,884.68x = 125,419.86 × 50,597.56
  4. Step 4: Simplify right side
    90,884.68x = 6,345,938,891.54
  5. Step 5: Solve for x
    x = 6,345,938,891.54/90,884.68
  6. Step 6: Final answer
    x = 69,824.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.