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Finding the Fourth Proportional to 58,785.30, 81,123.39 and 31,927.59

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Solution

The fourth proportional to 58,785.30, 81,123.39 and 31,927.59 is: 44,059.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,785.30 : 81,123.39 = 31,927.59 : x
  2. Step 2: Convert to fraction form
    58,785.30/81,123.39 = 31,927.59/x
  3. Step 3: Cross multiply
    58,785.30x = 81,123.39 × 31,927.59
  4. Step 4: Simplify right side
    58,785.30x = 2,590,074,335.33
  5. Step 5: Solve for x
    x = 2,590,074,335.33/58,785.30
  6. Step 6: Final answer
    x = 44,059.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.