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Finding the Fourth Proportional to 61,701.74, 92,540.89 and 30,079.99

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Solution

The fourth proportional to 61,701.74, 92,540.89 and 30,079.99 is: 45,114.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,701.74 : 92,540.89 = 30,079.99 : x
  2. Step 2: Convert to fraction form
    61,701.74/92,540.89 = 30,079.99/x
  3. Step 3: Cross multiply
    61,701.74x = 92,540.89 × 30,079.99
  4. Step 4: Simplify right side
    61,701.74x = 2,783,628,895.39
  5. Step 5: Solve for x
    x = 2,783,628,895.39/61,701.74
  6. Step 6: Final answer
    x = 45,114.27

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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.