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Finding the Fourth Proportional to 120,060.50, 180,100.94 and 35,815.23

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Solution

The fourth proportional to 120,060.50, 180,100.94 and 35,815.23 is: 53,725.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,060.50 : 180,100.94 = 35,815.23 : x
  2. Step 2: Convert to fraction form
    120,060.50/180,100.94 = 35,815.23/x
  3. Step 3: Cross multiply
    120,060.50x = 180,100.94 × 35,815.23
  4. Step 4: Simplify right side
    120,060.50x = 6,450,356,410.24
  5. Step 5: Solve for x
    x = 6,450,356,410.24/120,060.50
  6. Step 6: Final answer
    x = 53,725.89

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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.