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Finding the Fourth Proportional to 91,254.70, 125,930.15 and 50,969.03

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Solution

The fourth proportional to 91,254.70, 125,930.15 and 50,969.03 is: 70,336.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,254.70 : 125,930.15 = 50,969.03 : x
  2. Step 2: Convert to fraction form
    91,254.70/125,930.15 = 50,969.03/x
  3. Step 3: Cross multiply
    91,254.70x = 125,930.15 × 50,969.03
  4. Step 4: Simplify right side
    91,254.70x = 6,418,537,593.25
  5. Step 5: Solve for x
    x = 6,418,537,593.25/91,254.70
  6. Step 6: Final answer
    x = 70,336.52

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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.