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Finding the Fourth Proportional to 272,361.44, 375,832.40 and 157,617.28

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Solution

The fourth proportional to 272,361.44, 375,832.40 and 157,617.28 is: 217,496.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,361.44 : 375,832.40 = 157,617.28 : x
  2. Step 2: Convert to fraction form
    272,361.44/375,832.40 = 157,617.28/x
  3. Step 3: Cross multiply
    272,361.44x = 375,832.40 × 157,617.28
  4. Step 4: Simplify right side
    272,361.44x = 59,237,680,623.87
  5. Step 5: Solve for x
    x = 59,237,680,623.87/272,361.44
  6. Step 6: Final answer
    x = 217,496.58

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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.