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Finding the Fourth Proportional to 252,682.70, 348,702.36 and 139,505.46

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Solution

The fourth proportional to 252,682.70, 348,702.36 and 139,505.46 is: 192,517.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,682.70 : 348,702.36 = 139,505.46 : x
  2. Step 2: Convert to fraction form
    252,682.70/348,702.36 = 139,505.46/x
  3. Step 3: Cross multiply
    252,682.70x = 348,702.36 × 139,505.46
  4. Step 4: Simplify right side
    252,682.70x = 48,645,883,134.89
  5. Step 5: Solve for x
    x = 48,645,883,134.89/252,682.70
  6. Step 6: Final answer
    x = 192,517.66

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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.