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Finding the Fourth Proportional to 146,767.60, 220,151.40 and 76,630.60

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Solution

The fourth proportional to 146,767.60, 220,151.40 and 76,630.60 is: 114,945.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,767.60 : 220,151.40 = 76,630.60 : x
  2. Step 2: Convert to fraction form
    146,767.60/220,151.40 = 76,630.60/x
  3. Step 3: Cross multiply
    146,767.60x = 220,151.40 × 76,630.60
  4. Step 4: Simplify right side
    146,767.60x = 16,870,333,872.84
  5. Step 5: Solve for x
    x = 16,870,333,872.84/146,767.60
  6. Step 6: Final answer
    x = 114,945.90

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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.