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Finding the Fourth Proportional to 499,212.40, 748,732.20 and 183,506.80

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Solution

The fourth proportional to 499,212.40, 748,732.20 and 183,506.80 is: 275,228.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,212.40 : 748,732.20 = 183,506.80 : x
  2. Step 2: Convert to fraction form
    499,212.40/748,732.20 = 183,506.80/x
  3. Step 3: Cross multiply
    499,212.40x = 748,732.20 × 183,506.80
  4. Step 4: Simplify right side
    499,212.40x = 137,397,450,078.96
  5. Step 5: Solve for x
    x = 137,397,450,078.96/499,212.40
  6. Step 6: Final answer
    x = 275,228.44

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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.