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Finding the Fourth Proportional to 90,274.60, 124,568.22 and 55,813.96

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Solution

The fourth proportional to 90,274.60, 124,568.22 and 55,813.96 is: 77,016.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,274.60 : 124,568.22 = 55,813.96 : x
  2. Step 2: Convert to fraction form
    90,274.60/124,568.22 = 55,813.96/x
  3. Step 3: Cross multiply
    90,274.60x = 124,568.22 × 55,813.96
  4. Step 4: Simplify right side
    90,274.60x = 6,952,645,648.35
  5. Step 5: Solve for x
    x = 6,952,645,648.35/90,274.60
  6. Step 6: Final answer
    x = 77,016.63

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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.