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Finding the Fourth Proportional to 58,788.54, 81,125.88 and 31,930.44

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Solution

The fourth proportional to 58,788.54, 81,125.88 and 31,930.44 is: 44,062.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,788.54 : 81,125.88 = 31,930.44 : x
  2. Step 2: Convert to fraction form
    58,788.54/81,125.88 = 31,930.44/x
  3. Step 3: Cross multiply
    58,788.54x = 81,125.88 × 31,930.44
  4. Step 4: Simplify right side
    58,788.54x = 2,590,385,043.79
  5. Step 5: Solve for x
    x = 2,590,385,043.79/58,788.54
  6. Step 6: Final answer
    x = 44,062.76

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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.