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Finding the Fourth Proportional to 172,361.90, 237,893.49 and 111,847.58

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Solution

The fourth proportional to 172,361.90, 237,893.49 and 111,847.58 is: 154,371.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,361.90 : 237,893.49 = 111,847.58 : x
  2. Step 2: Convert to fraction form
    172,361.90/237,893.49 = 111,847.58/x
  3. Step 3: Cross multiply
    172,361.90x = 237,893.49 × 111,847.58
  4. Step 4: Simplify right side
    172,361.90x = 26,607,811,154.25
  5. Step 5: Solve for x
    x = 26,607,811,154.25/172,361.90
  6. Step 6: Final answer
    x = 154,371.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.