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Finding the Fourth Proportional to 252,777.16, 348,814.92 and 139,591

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Solution

The fourth proportional to 252,777.16, 348,814.92 and 139,591 is: 192,625.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,777.16 : 348,814.92 = 139,591 : x
  2. Step 2: Convert to fraction form
    252,777.16/348,814.92 = 139,591/x
  3. Step 3: Cross multiply
    252,777.16x = 348,814.92 × 139,591
  4. Step 4: Simplify right side
    252,777.16x = 48,691,423,497.72
  5. Step 5: Solve for x
    x = 48,691,423,497.72/252,777.16
  6. Step 6: Final answer
    x = 192,625.88

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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.