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Finding the Fourth Proportional to 181,538.70, 272,308.05 and 168,416.70

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Solution

The fourth proportional to 181,538.70, 272,308.05 and 168,416.70 is: 252,625.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,538.70 : 272,308.05 = 168,416.70 : x
  2. Step 2: Convert to fraction form
    181,538.70/272,308.05 = 168,416.70/x
  3. Step 3: Cross multiply
    181,538.70x = 272,308.05 × 168,416.70
  4. Step 4: Simplify right side
    181,538.70x = 45,861,223,164.44
  5. Step 5: Solve for x
    x = 45,861,223,164.44/181,538.70
  6. Step 6: Final answer
    x = 252,625.05

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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.