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Finding the Fourth Proportional to 173,258.70, 259,914.21 and 73,419.30

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Solution

The fourth proportional to 173,258.70, 259,914.21 and 73,419.30 is: 110,140.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,258.70 : 259,914.21 = 73,419.30 : x
  2. Step 2: Convert to fraction form
    173,258.70/259,914.21 = 73,419.30/x
  3. Step 3: Cross multiply
    173,258.70x = 259,914.21 × 73,419.30
  4. Step 4: Simplify right side
    173,258.70x = 19,082,719,358.25
  5. Step 5: Solve for x
    x = 19,082,719,358.25/173,258.70
  6. Step 6: Final answer
    x = 110,140.04

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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.