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Finding the Fourth Proportional to 183,195.74, 252,683.88 and 128,863.16

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Solution

The fourth proportional to 183,195.74, 252,683.88 and 128,863.16 is: 177,742.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,195.74 : 252,683.88 = 128,863.16 : x
  2. Step 2: Convert to fraction form
    183,195.74/252,683.88 = 128,863.16/x
  3. Step 3: Cross multiply
    183,195.74x = 252,683.88 × 128,863.16
  4. Step 4: Simplify right side
    183,195.74x = 32,561,641,994.44
  5. Step 5: Solve for x
    x = 32,561,641,994.44/183,195.74
  6. Step 6: Final answer
    x = 177,742.36

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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.