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Finding the Fourth Proportional to 188,567,911.80, 282,641,915.70 and 73,514,215.80

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Solution

The fourth proportional to 188,567,911.80, 282,641,915.70 and 73,514,215.80 is: 110,189,472.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,567,911.80 : 282,641,915.70 = 73,514,215.80 : x
  2. Step 2: Convert to fraction form
    188,567,911.80/282,641,915.70 = 73,514,215.80/x
  3. Step 3: Cross multiply
    188,567,911.80x = 282,641,915.70 × 73,514,215.80
  4. Step 4: Simplify right side
    188,567,911.80x = 20,778,198,784,895,208
  5. Step 5: Solve for x
    x = 20,778,198,784,895,208/188,567,911.80
  6. Step 6: Final answer
    x = 110,189,472.78

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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.