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Finding the Fourth Proportional to 173,209.40, 259,619.70 and 73,352.60

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Solution

The fourth proportional to 173,209.40, 259,619.70 and 73,352.60 is: 109,946.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,209.40 : 259,619.70 = 73,352.60 : x
  2. Step 2: Convert to fraction form
    173,209.40/259,619.70 = 73,352.60/x
  3. Step 3: Cross multiply
    173,209.40x = 259,619.70 × 73,352.60
  4. Step 4: Simplify right side
    173,209.40x = 19,043,780,006.22
  5. Step 5: Solve for x
    x = 19,043,780,006.22/173,209.40
  6. Step 6: Final answer
    x = 109,946.57

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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.