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Finding the Fourth Proportional to 60,483,791.70, 90,725,687.55 and 15,045,586.20

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Solution

The fourth proportional to 60,483,791.70, 90,725,687.55 and 15,045,586.20 is: 22,568,379.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,483,791.70 : 90,725,687.55 = 15,045,586.20 : x
  2. Step 2: Convert to fraction form
    60,483,791.70/90,725,687.55 = 15,045,586.20/x
  3. Step 3: Cross multiply
    60,483,791.70x = 90,725,687.55 × 15,045,586.20
  4. Step 4: Simplify right side
    60,483,791.70x = 1,365,021,152,587,791.75
  5. Step 5: Solve for x
    x = 1,365,021,152,587,791.75/60,483,791.70
  6. Step 6: Final answer
    x = 22,568,379.30

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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.