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Finding the Fourth Proportional to 71,448.89, 98,604 and 41,239.80

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Solution

The fourth proportional to 71,448.89, 98,604 and 41,239.80 is: 56,913.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,448.89 : 98,604 = 41,239.80 : x
  2. Step 2: Convert to fraction form
    71,448.89/98,604 = 41,239.80/x
  3. Step 3: Cross multiply
    71,448.89x = 98,604 × 41,239.80
  4. Step 4: Simplify right side
    71,448.89x = 4,066,409,239.20
  5. Step 5: Solve for x
    x = 4,066,409,239.20/71,448.89
  6. Step 6: Final answer
    x = 56,913.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.