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Finding the Fourth Proportional to 148,792.70, 223,190.87 and 43,613.80

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Solution

The fourth proportional to 148,792.70, 223,190.87 and 43,613.80 is: 65,421.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,792.70 : 223,190.87 = 43,613.80 : x
  2. Step 2: Convert to fraction form
    148,792.70/223,190.87 = 43,613.80/x
  3. Step 3: Cross multiply
    148,792.70x = 223,190.87 × 43,613.80
  4. Step 4: Simplify right side
    148,792.70x = 9,734,200,631.98
  5. Step 5: Solve for x
    x = 9,734,200,631.98/148,792.70
  6. Step 6: Final answer
    x = 65,421.22

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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.