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Finding the Fourth Proportional to 187,991.92, 259,474.08 and 127,663.12

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Solution

The fourth proportional to 187,991.92, 259,474.08 and 127,663.12 is: 176,205.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,991.92 : 259,474.08 = 127,663.12 : x
  2. Step 2: Convert to fraction form
    187,991.92/259,474.08 = 127,663.12/x
  3. Step 3: Cross multiply
    187,991.92x = 259,474.08 × 127,663.12
  4. Step 4: Simplify right side
    187,991.92x = 33,125,270,611.93
  5. Step 5: Solve for x
    x = 33,125,270,611.93/187,991.92
  6. Step 6: Final answer
    x = 176,205.82

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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.