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Finding the Fourth Proportional to 55,599.86, 76,726.86 and 31,725.92

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Solution

The fourth proportional to 55,599.86, 76,726.86 and 31,725.92 is: 43,781.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,599.86 : 76,726.86 = 31,725.92 : x
  2. Step 2: Convert to fraction form
    55,599.86/76,726.86 = 31,725.92/x
  3. Step 3: Cross multiply
    55,599.86x = 76,726.86 × 31,725.92
  4. Step 4: Simplify right side
    55,599.86x = 2,434,230,222.21
  5. Step 5: Solve for x
    x = 2,434,230,222.21/55,599.86
  6. Step 6: Final answer
    x = 43,781.23

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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.