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Finding the Fourth Proportional to 181,707.40, 272,301.90 and 133,949.80

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Solution

The fourth proportional to 181,707.40, 272,301.90 and 133,949.80 is: 200,733.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,707.40 : 272,301.90 = 133,949.80 : x
  2. Step 2: Convert to fraction form
    181,707.40/272,301.90 = 133,949.80/x
  3. Step 3: Cross multiply
    181,707.40x = 272,301.90 × 133,949.80
  4. Step 4: Simplify right side
    181,707.40x = 36,474,785,044.62
  5. Step 5: Solve for x
    x = 36,474,785,044.62/181,707.40
  6. Step 6: Final answer
    x = 200,733.62

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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.