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Finding the Fourth Proportional to 181,009.40, 271,643.70 and 75,903.80

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Solution

The fourth proportional to 181,009.40, 271,643.70 and 75,903.80 is: 113,910.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,009.40 : 271,643.70 = 75,903.80 : x
  2. Step 2: Convert to fraction form
    181,009.40/271,643.70 = 75,903.80/x
  3. Step 3: Cross multiply
    181,009.40x = 271,643.70 × 75,903.80
  4. Step 4: Simplify right side
    181,009.40x = 20,618,789,076.06
  5. Step 5: Solve for x
    x = 20,618,789,076.06/181,009.40
  6. Step 6: Final answer
    x = 113,910.05

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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.