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Finding the Fourth Proportional to 252,609.60, 348,604.14 and 139,432.44

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Solution

The fourth proportional to 252,609.60, 348,604.14 and 139,432.44 is: 192,418.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,609.60 : 348,604.14 = 139,432.44 : x
  2. Step 2: Convert to fraction form
    252,609.60/348,604.14 = 139,432.44/x
  3. Step 3: Cross multiply
    252,609.60x = 348,604.14 × 139,432.44
  4. Step 4: Simplify right side
    252,609.60x = 48,606,725,834.30
  5. Step 5: Solve for x
    x = 48,606,725,834.30/252,609.60
  6. Step 6: Final answer
    x = 192,418.36

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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.