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Finding the Fourth Proportional to 97,399.80, 146,099.70 and 53,003.70

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Solution

The fourth proportional to 97,399.80, 146,099.70 and 53,003.70 is: 79,505.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,399.80 : 146,099.70 = 53,003.70 : x
  2. Step 2: Convert to fraction form
    97,399.80/146,099.70 = 53,003.70/x
  3. Step 3: Cross multiply
    97,399.80x = 146,099.70 × 53,003.70
  4. Step 4: Simplify right side
    97,399.80x = 7,743,824,668.89
  5. Step 5: Solve for x
    x = 7,743,824,668.89/97,399.80
  6. Step 6: Final answer
    x = 79,505.55

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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.