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Finding the Fourth Proportional to 161,270.64, 241,822.62 and 72,448.20

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Solution

The fourth proportional to 161,270.64, 241,822.62 and 72,448.20 is: 108,634.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,270.64 : 241,822.62 = 72,448.20 : x
  2. Step 2: Convert to fraction form
    161,270.64/241,822.62 = 72,448.20/x
  3. Step 3: Cross multiply
    161,270.64x = 241,822.62 × 72,448.20
  4. Step 4: Simplify right side
    161,270.64x = 17,519,613,538.28
  5. Step 5: Solve for x
    x = 17,519,613,538.28/161,270.64
  6. Step 6: Final answer
    x = 108,634.86

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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.