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Finding the Fourth Proportional to 91,333, 137,040.54 and 58,044.43

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Solution

The fourth proportional to 91,333, 137,040.54 and 58,044.43 is: 87,092.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,333 : 137,040.54 = 58,044.43 : x
  2. Step 2: Convert to fraction form
    91,333/137,040.54 = 58,044.43/x
  3. Step 3: Cross multiply
    91,333x = 137,040.54 × 58,044.43
  4. Step 4: Simplify right side
    91,333x = 7,954,440,031.19
  5. Step 5: Solve for x
    x = 7,954,440,031.19/91,333
  6. Step 6: Final answer
    x = 87,092.73

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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.