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Finding the Fourth Proportional to 321,737.70, 482,664.15 and 134,768.10

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Solution

The fourth proportional to 321,737.70, 482,664.15 and 134,768.10 is: 202,176.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,737.70 : 482,664.15 = 134,768.10 : x
  2. Step 2: Convert to fraction form
    321,737.70/482,664.15 = 134,768.10/x
  3. Step 3: Cross multiply
    321,737.70x = 482,664.15 × 134,768.10
  4. Step 4: Simplify right side
    321,737.70x = 65,047,730,433.62
  5. Step 5: Solve for x
    x = 65,047,730,433.62/321,737.70
  6. Step 6: Final answer
    x = 202,176.28

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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.