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Finding the Fourth Proportional to 187,991.59, 259,490.43 and 168,062.55

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Solution

The fourth proportional to 187,991.59, 259,490.43 and 168,062.55 is: 231,981.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,991.59 : 259,490.43 = 168,062.55 : x
  2. Step 2: Convert to fraction form
    187,991.59/259,490.43 = 168,062.55/x
  3. Step 3: Cross multiply
    187,991.59x = 259,490.43 × 168,062.55
  4. Step 4: Simplify right side
    187,991.59x = 43,610,622,526.08
  5. Step 5: Solve for x
    x = 43,610,622,526.08/187,991.59
  6. Step 6: Final answer
    x = 231,981.78

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1.5x scale

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.