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Finding the Fourth Proportional to 188,944,109.80, 283,416,164.70 and 79,892,416.60

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Solution

The fourth proportional to 188,944,109.80, 283,416,164.70 and 79,892,416.60 is: 119,838,624.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,944,109.80 : 283,416,164.70 = 79,892,416.60 : x
  2. Step 2: Convert to fraction form
    188,944,109.80/283,416,164.70 = 79,892,416.60/x
  3. Step 3: Cross multiply
    188,944,109.80x = 283,416,164.70 × 79,892,416.60
  4. Step 4: Simplify right side
    188,944,109.80x = 22,642,802,301,386,612
  5. Step 5: Solve for x
    x = 22,642,802,301,386,612/188,944,109.80
  6. Step 6: Final answer
    x = 119,838,624.90

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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.