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Finding the Fourth Proportional to 252,291.44, 348,161.82 and 139,114.46

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Solution

The fourth proportional to 252,291.44, 348,161.82 and 139,114.46 is: 191,977.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,291.44 : 348,161.82 = 139,114.46 : x
  2. Step 2: Convert to fraction form
    252,291.44/348,161.82 = 139,114.46/x
  3. Step 3: Cross multiply
    252,291.44x = 348,161.82 × 139,114.46
  4. Step 4: Simplify right side
    252,291.44x = 48,434,343,581.92
  5. Step 5: Solve for x
    x = 48,434,343,581.92/252,291.44
  6. Step 6: Final answer
    x = 191,977.75

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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.