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Finding the Fourth Proportional to 116,122.40, 173,924.40 and 89,619.20

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Solution

The fourth proportional to 116,122.40, 173,924.40 and 89,619.20 is: 134,228.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,122.40 : 173,924.40 = 89,619.20 : x
  2. Step 2: Convert to fraction form
    116,122.40/173,924.40 = 89,619.20/x
  3. Step 3: Cross multiply
    116,122.40x = 173,924.40 × 89,619.20
  4. Step 4: Simplify right side
    116,122.40x = 15,586,965,588.48
  5. Step 5: Solve for x
    x = 15,586,965,588.48/116,122.40
  6. Step 6: Final answer
    x = 134,228.76

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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.