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Finding the Fourth Proportional to 183,310.51, 252,703.42 and 128,696.41

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Solution

The fourth proportional to 183,310.51, 252,703.42 and 128,696.41 is: 177,414.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,310.51 : 252,703.42 = 128,696.41 : x
  2. Step 2: Convert to fraction form
    183,310.51/252,703.42 = 128,696.41/x
  3. Step 3: Cross multiply
    183,310.51x = 252,703.42 × 128,696.41
  4. Step 4: Simplify right side
    183,310.51x = 32,522,022,948.72
  5. Step 5: Solve for x
    x = 32,522,022,948.72/183,310.51
  6. Step 6: Final answer
    x = 177,414.94

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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.