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Finding the Fourth Proportional to 136,195.40, 204,230.70 and 73,005.80

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Solution

The fourth proportional to 136,195.40, 204,230.70 and 73,005.80 is: 109,475.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,195.40 : 204,230.70 = 73,005.80 : x
  2. Step 2: Convert to fraction form
    136,195.40/204,230.70 = 73,005.80/x
  3. Step 3: Cross multiply
    136,195.40x = 204,230.70 × 73,005.80
  4. Step 4: Simplify right side
    136,195.40x = 14,910,025,638.06
  5. Step 5: Solve for x
    x = 14,910,025,638.06/136,195.40
  6. Step 6: Final answer
    x = 109,475.25

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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.