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Finding the Fourth Proportional to 61,172.40, 91,641.60 and 41,353.68

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Solution

The fourth proportional to 61,172.40, 91,641.60 and 41,353.68 is: 61,951.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,172.40 : 91,641.60 = 41,353.68 : x
  2. Step 2: Convert to fraction form
    61,172.40/91,641.60 = 41,353.68/x
  3. Step 3: Cross multiply
    61,172.40x = 91,641.60 × 41,353.68
  4. Step 4: Simplify right side
    61,172.40x = 3,789,717,401.09
  5. Step 5: Solve for x
    x = 3,789,717,401.09/61,172.40
  6. Step 6: Final answer
    x = 61,951.43

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1.5x scale

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.