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Finding the Fourth Proportional to 181,191.40, 271,268.70 and 111,207.40

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Solution

The fourth proportional to 181,191.40, 271,268.70 and 111,207.40 is: 166,492.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,191.40 : 271,268.70 = 111,207.40 : x
  2. Step 2: Convert to fraction form
    181,191.40/271,268.70 = 111,207.40/x
  3. Step 3: Cross multiply
    181,191.40x = 271,268.70 × 111,207.40
  4. Step 4: Simplify right side
    181,191.40x = 30,167,086,828.38
  5. Step 5: Solve for x
    x = 30,167,086,828.38/181,191.40
  6. Step 6: Final answer
    x = 166,492.93

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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.