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Finding the Fourth Proportional to 308,546.04, 425,832.96 and 172,587.54

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Solution

The fourth proportional to 308,546.04, 425,832.96 and 172,587.54 is: 238,192.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,546.04 : 425,832.96 = 172,587.54 : x
  2. Step 2: Convert to fraction form
    308,546.04/425,832.96 = 172,587.54/x
  3. Step 3: Cross multiply
    308,546.04x = 425,832.96 × 172,587.54
  4. Step 4: Simplify right side
    308,546.04x = 73,493,463,017.32
  5. Step 5: Solve for x
    x = 73,493,463,017.32/308,546.04
  6. Step 6: Final answer
    x = 238,192.86

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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.