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Finding the Fourth Proportional to 492,481.10, 738,666.27 and 132,678.55

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Solution

The fourth proportional to 492,481.10, 738,666.27 and 132,678.55 is: 199,002.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,481.10 : 738,666.27 = 132,678.55 : x
  2. Step 2: Convert to fraction form
    492,481.10/738,666.27 = 132,678.55/x
  3. Step 3: Cross multiply
    492,481.10x = 738,666.27 × 132,678.55
  4. Step 4: Simplify right side
    492,481.10x = 98,005,166,405.84
  5. Step 5: Solve for x
    x = 98,005,166,405.84/492,481.10
  6. Step 6: Final answer
    x = 199,002.90

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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.