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Finding the Fourth Proportional to 324,010.06, 486,007.80 and 146,469.40

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Solution

The fourth proportional to 324,010.06, 486,007.80 and 146,469.40 is: 219,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,010.06 : 486,007.80 = 146,469.40 : x
  2. Step 2: Convert to fraction form
    324,010.06/486,007.80 = 146,469.40/x
  3. Step 3: Cross multiply
    324,010.06x = 486,007.80 × 146,469.40
  4. Step 4: Simplify right side
    324,010.06x = 71,185,270,861.32
  5. Step 5: Solve for x
    x = 71,185,270,861.32/324,010.06
  6. Step 6: Final answer
    x = 219,700.80

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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.