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Finding the Fourth Proportional to 218,651.14, 301,635.48 and 127,951.48

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Solution

The fourth proportional to 218,651.14, 301,635.48 and 127,951.48 is: 176,512.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,651.14 : 301,635.48 = 127,951.48 : x
  2. Step 2: Convert to fraction form
    218,651.14/301,635.48 = 127,951.48/x
  3. Step 3: Cross multiply
    218,651.14x = 301,635.48 × 127,951.48
  4. Step 4: Simplify right side
    218,651.14x = 38,594,706,086.51
  5. Step 5: Solve for x
    x = 38,594,706,086.51/218,651.14
  6. Step 6: Final answer
    x = 176,512.71

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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.