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Finding the Fourth Proportional to 83,323.96, 124,930.32 and 45,901.96

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Solution

The fourth proportional to 83,323.96, 124,930.32 and 45,901.96 is: 68,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,323.96 : 124,930.32 = 45,901.96 : x
  2. Step 2: Convert to fraction form
    83,323.96/124,930.32 = 45,901.96/x
  3. Step 3: Cross multiply
    83,323.96x = 124,930.32 × 45,901.96
  4. Step 4: Simplify right side
    83,323.96x = 5,734,546,551.43
  5. Step 5: Solve for x
    x = 5,734,546,551.43/83,323.96
  6. Step 6: Final answer
    x = 68,822.30

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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.