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Finding the Fourth Proportional to 101,364.54, 139,905.28 and 58,947.54

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Solution

The fourth proportional to 101,364.54, 139,905.28 and 58,947.54 is: 81,360.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,364.54 : 139,905.28 = 58,947.54 : x
  2. Step 2: Convert to fraction form
    101,364.54/139,905.28 = 58,947.54/x
  3. Step 3: Cross multiply
    101,364.54x = 139,905.28 × 58,947.54
  4. Step 4: Simplify right side
    101,364.54x = 8,247,072,089.01
  5. Step 5: Solve for x
    x = 8,247,072,089.01/101,364.54
  6. Step 6: Final answer
    x = 81,360.52

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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.