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Finding the Fourth Proportional to 116,470.68, 174,927.47 and 72,405.36

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Solution

The fourth proportional to 116,470.68, 174,927.47 and 72,405.36 is: 108,745.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,470.68 : 174,927.47 = 72,405.36 : x
  2. Step 2: Convert to fraction form
    116,470.68/174,927.47 = 72,405.36/x
  3. Step 3: Cross multiply
    116,470.68x = 174,927.47 × 72,405.36
  4. Step 4: Simplify right side
    116,470.68x = 12,665,686,077.21
  5. Step 5: Solve for x
    x = 12,665,686,077.21/116,470.68
  6. Step 6: Final answer
    x = 108,745.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.