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Finding the Fourth Proportional to 172,696.68, 238,258.20 and 104,664.57

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Solution

The fourth proportional to 172,696.68, 238,258.20 and 104,664.57 is: 144,398.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,696.68 : 238,258.20 = 104,664.57 : x
  2. Step 2: Convert to fraction form
    172,696.68/238,258.20 = 104,664.57/x
  3. Step 3: Cross multiply
    172,696.68x = 238,258.20 × 104,664.57
  4. Step 4: Simplify right side
    172,696.68x = 24,937,192,051.97
  5. Step 5: Solve for x
    x = 24,937,192,051.97/172,696.68
  6. Step 6: Final answer
    x = 144,398.79

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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.