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Finding the Fourth Proportional to 172,954.66, 238,656.18 and 96,455.82

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Solution

The fourth proportional to 172,954.66, 238,656.18 and 96,455.82 is: 133,097.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,954.66 : 238,656.18 = 96,455.82 : x
  2. Step 2: Convert to fraction form
    172,954.66/238,656.18 = 96,455.82/x
  3. Step 3: Cross multiply
    172,954.66x = 238,656.18 × 96,455.82
  4. Step 4: Simplify right side
    172,954.66x = 23,019,777,539.97
  5. Step 5: Solve for x
    x = 23,019,777,539.97/172,954.66
  6. Step 6: Final answer
    x = 133,097.18

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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.