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Finding the Fourth Proportional to 235,348.60, 324,781.14 and 127,918.66

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Solution

The fourth proportional to 235,348.60, 324,781.14 and 127,918.66 is: 176,527.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,348.60 : 324,781.14 = 127,918.66 : x
  2. Step 2: Convert to fraction form
    235,348.60/324,781.14 = 127,918.66/x
  3. Step 3: Cross multiply
    235,348.60x = 324,781.14 × 127,918.66
  4. Step 4: Simplify right side
    235,348.60x = 41,545,568,222.07
  5. Step 5: Solve for x
    x = 41,545,568,222.07/235,348.60
  6. Step 6: Final answer
    x = 176,527.79

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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.