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Finding the Fourth Proportional to 102,628.80, 153,957.60 and 32,500.80

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Solution

The fourth proportional to 102,628.80, 153,957.60 and 32,500.80 is: 48,755.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,628.80 : 153,957.60 = 32,500.80 : x
  2. Step 2: Convert to fraction form
    102,628.80/153,957.60 = 32,500.80/x
  3. Step 3: Cross multiply
    102,628.80x = 153,957.60 × 32,500.80
  4. Step 4: Simplify right side
    102,628.80x = 5,003,745,166.08
  5. Step 5: Solve for x
    x = 5,003,745,166.08/102,628.80
  6. Step 6: Final answer
    x = 48,755.76

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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.