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Finding the Fourth Proportional to 252,197.30, 348,031.86 and 139,020.14

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Solution

The fourth proportional to 252,197.30, 348,031.86 and 139,020.14 is: 191,847.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,197.30 : 348,031.86 = 139,020.14 : x
  2. Step 2: Convert to fraction form
    252,197.30/348,031.86 = 139,020.14/x
  3. Step 3: Cross multiply
    252,197.30x = 348,031.86 × 139,020.14
  4. Step 4: Simplify right side
    252,197.30x = 48,383,437,901.66
  5. Step 5: Solve for x
    x = 48,383,437,901.66/252,197.30
  6. Step 6: Final answer
    x = 191,847.56

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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.