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Finding the Fourth Proportional to 127,198.68, 190,799.55 and 32,428.68

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Solution

The fourth proportional to 127,198.68, 190,799.55 and 32,428.68 is: 48,643.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,198.68 : 190,799.55 = 32,428.68 : x
  2. Step 2: Convert to fraction form
    127,198.68/190,799.55 = 32,428.68/x
  3. Step 3: Cross multiply
    127,198.68x = 190,799.55 × 32,428.68
  4. Step 4: Simplify right side
    127,198.68x = 6,187,377,551.09
  5. Step 5: Solve for x
    x = 6,187,377,551.09/127,198.68
  6. Step 6: Final answer
    x = 48,643.41

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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.