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Finding the Fourth Proportional to 239,851.44, 330,995.46 and 132,421.68

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Solution

The fourth proportional to 239,851.44, 330,995.46 and 132,421.68 is: 182,742.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,851.44 : 330,995.46 = 132,421.68 : x
  2. Step 2: Convert to fraction form
    239,851.44/330,995.46 = 132,421.68/x
  3. Step 3: Cross multiply
    239,851.44x = 330,995.46 × 132,421.68
  4. Step 4: Simplify right side
    239,851.44x = 43,830,974,885.57
  5. Step 5: Solve for x
    x = 43,830,974,885.57/239,851.44
  6. Step 6: Final answer
    x = 182,742.18

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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.