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Finding the Fourth Proportional to 187,990.92, 259,472.70 and 127,662.12

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Solution

The fourth proportional to 187,990.92, 259,472.70 and 127,662.12 is: 176,204.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,990.92 : 259,472.70 = 127,662.12 : x
  2. Step 2: Convert to fraction form
    187,990.92/259,472.70 = 127,662.12/x
  3. Step 3: Cross multiply
    187,990.92x = 259,472.70 × 127,662.12
  4. Step 4: Simplify right side
    187,990.92x = 33,124,834,964.12
  5. Step 5: Solve for x
    x = 33,124,834,964.12/187,990.92
  6. Step 6: Final answer
    x = 176,204.44

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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.