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Finding the Fourth Proportional to 363,918.33, 545,851.53 and 136,170.63

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Solution

The fourth proportional to 363,918.33, 545,851.53 and 136,170.63 is: 204,246.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,918.33 : 545,851.53 = 136,170.63 : x
  2. Step 2: Convert to fraction form
    363,918.33/545,851.53 = 136,170.63/x
  3. Step 3: Cross multiply
    363,918.33x = 545,851.53 × 136,170.63
  4. Step 4: Simplify right side
    363,918.33x = 74,328,946,726.56
  5. Step 5: Solve for x
    x = 74,328,946,726.56/363,918.33
  6. Step 6: Final answer
    x = 204,246.23

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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.