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Finding the Fourth Proportional to 463,380.53, 694,936.60 and 139,155.56

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Solution

The fourth proportional to 463,380.53, 694,936.60 and 139,155.56 is: 208,693.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,380.53 : 694,936.60 = 139,155.56 : x
  2. Step 2: Convert to fraction form
    463,380.53/694,936.60 = 139,155.56/x
  3. Step 3: Cross multiply
    463,380.53x = 694,936.60 × 139,155.56
  4. Step 4: Simplify right side
    463,380.53x = 96,704,291,737.50
  5. Step 5: Solve for x
    x = 96,704,291,737.50/463,380.53
  6. Step 6: Final answer
    x = 208,693.04

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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.