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Finding the Fourth Proportional to 102,865.20, 154,297.80 and 32,751.60

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Solution

The fourth proportional to 102,865.20, 154,297.80 and 32,751.60 is: 49,127.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,865.20 : 154,297.80 = 32,751.60 : x
  2. Step 2: Convert to fraction form
    102,865.20/154,297.80 = 32,751.60/x
  3. Step 3: Cross multiply
    102,865.20x = 154,297.80 × 32,751.60
  4. Step 4: Simplify right side
    102,865.20x = 5,053,499,826.48
  5. Step 5: Solve for x
    x = 5,053,499,826.48/102,865.20
  6. Step 6: Final answer
    x = 49,127.40

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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.