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Finding the Fourth Proportional to 181,302.90, 271,955.96 and 74,661.54

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Solution

The fourth proportional to 181,302.90, 271,955.96 and 74,661.54 is: 111,992.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,302.90 : 271,955.96 = 74,661.54 : x
  2. Step 2: Convert to fraction form
    181,302.90/271,955.96 = 74,661.54/x
  3. Step 3: Cross multiply
    181,302.90x = 271,955.96 × 74,661.54
  4. Step 4: Simplify right side
    181,302.90x = 20,304,650,785.78
  5. Step 5: Solve for x
    x = 20,304,650,785.78/181,302.90
  6. Step 6: Final answer
    x = 111,992.97

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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.