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Finding the Fourth Proportional to 489,212.58, 733,740.15 and 134,144.22

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Solution

The fourth proportional to 489,212.58, 733,740.15 and 134,144.22 is: 201,194.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,212.58 : 733,740.15 = 134,144.22 : x
  2. Step 2: Convert to fraction form
    489,212.58/733,740.15 = 134,144.22/x
  3. Step 3: Cross multiply
    489,212.58x = 733,740.15 × 134,144.22
  4. Step 4: Simplify right side
    489,212.58x = 98,427,000,104.43
  5. Step 5: Solve for x
    x = 98,427,000,104.43/489,212.58
  6. Step 6: Final answer
    x = 201,194.74

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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.