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Finding the Fourth Proportional to 300,968.70, 451,574.55 and 132,521.10

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Solution

The fourth proportional to 300,968.70, 451,574.55 and 132,521.10 is: 198,835.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,968.70 : 451,574.55 = 132,521.10 : x
  2. Step 2: Convert to fraction form
    300,968.70/451,574.55 = 132,521.10/x
  3. Step 3: Cross multiply
    300,968.70x = 451,574.55 × 132,521.10
  4. Step 4: Simplify right side
    300,968.70x = 59,843,156,098.01
  5. Step 5: Solve for x
    x = 59,843,156,098.01/300,968.70
  6. Step 6: Final answer
    x = 198,835.15

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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.