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Finding the Fourth Proportional to 101,804.11, 140,496.31 and 58,785.41

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Solution

The fourth proportional to 101,804.11, 140,496.31 and 58,785.41 is: 81,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,804.11 : 140,496.31 = 58,785.41 : x
  2. Step 2: Convert to fraction form
    101,804.11/140,496.31 = 58,785.41/x
  3. Step 3: Cross multiply
    101,804.11x = 140,496.31 × 58,785.41
  4. Step 4: Simplify right side
    101,804.11x = 8,259,133,186.84
  5. Step 5: Solve for x
    x = 8,259,133,186.84/101,804.11
  6. Step 6: Final answer
    x = 81,127.70

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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.