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Finding the Fourth Proportional to 127,241.71, 190,906.20 and 79,799.51

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Solution

The fourth proportional to 127,241.71, 190,906.20 and 79,799.51 is: 119,726.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,241.71 : 190,906.20 = 79,799.51 : x
  2. Step 2: Convert to fraction form
    127,241.71/190,906.20 = 79,799.51/x
  3. Step 3: Cross multiply
    127,241.71x = 190,906.20 × 79,799.51
  4. Step 4: Simplify right side
    127,241.71x = 15,234,221,693.23
  5. Step 5: Solve for x
    x = 15,234,221,693.23/127,241.71
  6. Step 6: Final answer
    x = 119,726.64

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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.