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Finding the Fourth Proportional to 181,185.80, 271,811.10 and 76,015.40

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Solution

The fourth proportional to 181,185.80, 271,811.10 and 76,015.40 is: 114,036.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,185.80 : 271,811.10 = 76,015.40 : x
  2. Step 2: Convert to fraction form
    181,185.80/271,811.10 = 76,015.40/x
  3. Step 3: Cross multiply
    181,185.80x = 271,811.10 × 76,015.40
  4. Step 4: Simplify right side
    181,185.80x = 20,661,829,490.94
  5. Step 5: Solve for x
    x = 20,661,829,490.94/181,185.80
  6. Step 6: Final answer
    x = 114,036.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.