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Finding the Fourth Proportional to 97,710.80, 146,452.80 and 45,125.60

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Solution

The fourth proportional to 97,710.80, 146,452.80 and 45,125.60 is: 67,636.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,710.80 : 146,452.80 = 45,125.60 : x
  2. Step 2: Convert to fraction form
    97,710.80/146,452.80 = 45,125.60/x
  3. Step 3: Cross multiply
    97,710.80x = 146,452.80 × 45,125.60
  4. Step 4: Simplify right side
    97,710.80x = 6,608,770,471.68
  5. Step 5: Solve for x
    x = 6,608,770,471.68/97,710.80
  6. Step 6: Final answer
    x = 67,636.03

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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.