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Finding the Fourth Proportional to 61,293.41, 91,982.49 and 40,243.53

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Solution

The fourth proportional to 61,293.41, 91,982.49 and 40,243.53 is: 60,393.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,293.41 : 91,982.49 = 40,243.53 : x
  2. Step 2: Convert to fraction form
    61,293.41/91,982.49 = 40,243.53/x
  3. Step 3: Cross multiply
    61,293.41x = 91,982.49 × 40,243.53
  4. Step 4: Simplify right side
    61,293.41x = 3,701,700,289.81
  5. Step 5: Solve for x
    x = 3,701,700,289.81/61,293.41
  6. Step 6: Final answer
    x = 60,393.12

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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.