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Finding the Fourth Proportional to 252,394.88, 348,301.50 and 137,674.58

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Solution

The fourth proportional to 252,394.88, 348,301.50 and 137,674.58 is: 189,989.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,394.88 : 348,301.50 = 137,674.58 : x
  2. Step 2: Convert to fraction form
    252,394.88/348,301.50 = 137,674.58/x
  3. Step 3: Cross multiply
    252,394.88x = 348,301.50 × 137,674.58
  4. Step 4: Simplify right side
    252,394.88x = 47,952,262,725.87
  5. Step 5: Solve for x
    x = 47,952,262,725.87/252,394.88
  6. Step 6: Final answer
    x = 189,989.05

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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.