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Finding the Fourth Proportional to 187,994.88, 259,443.36 and 111,519.36

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Solution

The fourth proportional to 187,994.88, 259,443.36 and 111,519.36 is: 153,902.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,994.88 : 259,443.36 = 111,519.36 : x
  2. Step 2: Convert to fraction form
    187,994.88/259,443.36 = 111,519.36/x
  3. Step 3: Cross multiply
    187,994.88x = 259,443.36 × 111,519.36
  4. Step 4: Simplify right side
    187,994.88x = 28,932,957,463.45
  5. Step 5: Solve for x
    x = 28,932,957,463.45/187,994.88
  6. Step 6: Final answer
    x = 153,902.90

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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.