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Finding the Fourth Proportional to 252,429.25, 348,290.22 and 154,287.64

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Solution

The fourth proportional to 252,429.25, 348,290.22 and 154,287.64 is: 212,878.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,429.25 : 348,290.22 = 154,287.64 : x
  2. Step 2: Convert to fraction form
    252,429.25/348,290.22 = 154,287.64/x
  3. Step 3: Cross multiply
    252,429.25x = 348,290.22 × 154,287.64
  4. Step 4: Simplify right side
    252,429.25x = 53,736,876,078.88
  5. Step 5: Solve for x
    x = 53,736,876,078.88/252,429.25
  6. Step 6: Final answer
    x = 212,878.96

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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.