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Finding the Fourth Proportional to 168,687.34, 232,637.76 and 139,961.52

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Solution

The fourth proportional to 168,687.34, 232,637.76 and 139,961.52 is: 193,021.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,687.34 : 232,637.76 = 139,961.52 : x
  2. Step 2: Convert to fraction form
    168,687.34/232,637.76 = 139,961.52/x
  3. Step 3: Cross multiply
    168,687.34x = 232,637.76 × 139,961.52
  4. Step 4: Simplify right side
    168,687.34x = 32,560,334,499.00
  5. Step 5: Solve for x
    x = 32,560,334,499.00/168,687.34
  6. Step 6: Final answer
    x = 193,021.80

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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.