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Finding the Fourth Proportional to 253,883.56, 350,363.60 and 139,159.92

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Solution

The fourth proportional to 253,883.56, 350,363.60 and 139,159.92 is: 192,043.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,883.56 : 350,363.60 = 139,159.92 : x
  2. Step 2: Convert to fraction form
    253,883.56/350,363.60 = 139,159.92/x
  3. Step 3: Cross multiply
    253,883.56x = 350,363.60 × 139,159.92
  4. Step 4: Simplify right side
    253,883.56x = 48,756,570,546.91
  5. Step 5: Solve for x
    x = 48,756,570,546.91/253,883.56
  6. Step 6: Final answer
    x = 192,043.04

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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.