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Finding the Fourth Proportional to 55,594.80, 76,717.50 and 31,723.74

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Solution

The fourth proportional to 55,594.80, 76,717.50 and 31,723.74 is: 43,776.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,594.80 : 76,717.50 = 31,723.74 : x
  2. Step 2: Convert to fraction form
    55,594.80/76,717.50 = 31,723.74/x
  3. Step 3: Cross multiply
    55,594.80x = 76,717.50 × 31,723.74
  4. Step 4: Simplify right side
    55,594.80x = 2,433,766,023.45
  5. Step 5: Solve for x
    x = 2,433,766,023.45/55,594.80
  6. Step 6: Final answer
    x = 43,776.86

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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.