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Finding the Fourth Proportional to 178,634.40, 267,933.12 and 89,851.68

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Solution

The fourth proportional to 178,634.40, 267,933.12 and 89,851.68 is: 134,768.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,634.40 : 267,933.12 = 89,851.68 : x
  2. Step 2: Convert to fraction form
    178,634.40/267,933.12 = 89,851.68/x
  3. Step 3: Cross multiply
    178,634.40x = 267,933.12 × 89,851.68
  4. Step 4: Simplify right side
    178,634.40x = 24,074,240,959.64
  5. Step 5: Solve for x
    x = 24,074,240,959.64/178,634.40
  6. Step 6: Final answer
    x = 134,768.22

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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.