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Finding the Fourth Proportional to 252,668.97, 348,668.15 and 137,924.78

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Solution

The fourth proportional to 252,668.97, 348,668.15 and 137,924.78 is: 190,327.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,668.97 : 348,668.15 = 137,924.78 : x
  2. Step 2: Convert to fraction form
    252,668.97/348,668.15 = 137,924.78/x
  3. Step 3: Cross multiply
    252,668.97x = 348,668.15 × 137,924.78
  4. Step 4: Simplify right side
    252,668.97x = 48,089,975,448.79
  5. Step 5: Solve for x
    x = 48,089,975,448.79/252,668.97
  6. Step 6: Final answer
    x = 190,327.98

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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.