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Finding the Fourth Proportional to 41,207.90, 61,941.45 and 40,430.30

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Solution

The fourth proportional to 41,207.90, 61,941.45 and 40,430.30 is: 60,772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,207.90 : 61,941.45 = 40,430.30 : x
  2. Step 2: Convert to fraction form
    41,207.90/61,941.45 = 40,430.30/x
  3. Step 3: Cross multiply
    41,207.90x = 61,941.45 × 40,430.30
  4. Step 4: Simplify right side
    41,207.90x = 2,504,311,405.94
  5. Step 5: Solve for x
    x = 2,504,311,405.94/41,207.90
  6. Step 6: Final answer
    x = 60,772.60

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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.