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Finding the Fourth Proportional to 262,487.25, 393,361.79 and 149,998.91

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Solution

The fourth proportional to 262,487.25, 393,361.79 and 149,998.91 is: 224,787.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,487.25 : 393,361.79 = 149,998.91 : x
  2. Step 2: Convert to fraction form
    262,487.25/393,361.79 = 149,998.91/x
  3. Step 3: Cross multiply
    262,487.25x = 393,361.79 × 149,998.91
  4. Step 4: Simplify right side
    262,487.25x = 59,003,837,018.85
  5. Step 5: Solve for x
    x = 59,003,837,018.85/262,487.25
  6. Step 6: Final answer
    x = 224,787.44

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1.5x scale

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.