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Finding the Fourth Proportional to 159,496.20, 239,187.60 and 70,590.60

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Solution

The fourth proportional to 159,496.20, 239,187.60 and 70,590.60 is: 105,860.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,496.20 : 239,187.60 = 70,590.60 : x
  2. Step 2: Convert to fraction form
    159,496.20/239,187.60 = 70,590.60/x
  3. Step 3: Cross multiply
    159,496.20x = 239,187.60 × 70,590.60
  4. Step 4: Simplify right side
    159,496.20x = 16,884,396,196.56
  5. Step 5: Solve for x
    x = 16,884,396,196.56/159,496.20
  6. Step 6: Final answer
    x = 105,860.81

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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.