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Finding the Fourth Proportional to 117,988.88, 177,872.75 and 110,378.12

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Solution

The fourth proportional to 117,988.88, 177,872.75 and 110,378.12 is: 166,399.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,988.88 : 177,872.75 = 110,378.12 : x
  2. Step 2: Convert to fraction form
    117,988.88/177,872.75 = 110,378.12/x
  3. Step 3: Cross multiply
    117,988.88x = 177,872.75 × 110,378.12
  4. Step 4: Simplify right side
    117,988.88x = 19,633,259,760.43
  5. Step 5: Solve for x
    x = 19,633,259,760.43/117,988.88
  6. Step 6: Final answer
    x = 166,399.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.