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Finding the Fourth Proportional to 318,275.97, 439,212.07 and 175,036

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Solution

The fourth proportional to 318,275.97, 439,212.07 and 175,036 is: 241,544.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,275.97 : 439,212.07 = 175,036 : x
  2. Step 2: Convert to fraction form
    318,275.97/439,212.07 = 175,036/x
  3. Step 3: Cross multiply
    318,275.97x = 439,212.07 × 175,036
  4. Step 4: Simplify right side
    318,275.97x = 76,877,923,884.52
  5. Step 5: Solve for x
    x = 76,877,923,884.52/318,275.97
  6. Step 6: Final answer
    x = 241,544.86

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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.