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Finding the Fourth Proportional to 83,050.58, 124,501.80 and 30,447.80

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Solution

The fourth proportional to 83,050.58, 124,501.80 and 30,447.80 is: 45,644.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,050.58 : 124,501.80 = 30,447.80 : x
  2. Step 2: Convert to fraction form
    83,050.58/124,501.80 = 30,447.80/x
  3. Step 3: Cross multiply
    83,050.58x = 124,501.80 × 30,447.80
  4. Step 4: Simplify right side
    83,050.58x = 3,790,805,906.04
  5. Step 5: Solve for x
    x = 3,790,805,906.04/83,050.58
  6. Step 6: Final answer
    x = 45,644.54

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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.