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Finding the Fourth Proportional to 101,318.22, 139,836.50 and 58,901.35

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Solution

The fourth proportional to 101,318.22, 139,836.50 and 58,901.35 is: 81,293.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,318.22 : 139,836.50 = 58,901.35 : x
  2. Step 2: Convert to fraction form
    101,318.22/139,836.50 = 58,901.35/x
  3. Step 3: Cross multiply
    101,318.22x = 139,836.50 × 58,901.35
  4. Step 4: Simplify right side
    101,318.22x = 8,236,558,629.28
  5. Step 5: Solve for x
    x = 8,236,558,629.28/101,318.22
  6. Step 6: Final answer
    x = 81,293.95

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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.