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Finding the Fourth Proportional to 269,561.80, 404,342.70 and 243,317.80

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Solution

The fourth proportional to 269,561.80, 404,342.70 and 243,317.80 is: 364,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,561.80 : 404,342.70 = 243,317.80 : x
  2. Step 2: Convert to fraction form
    269,561.80/404,342.70 = 243,317.80/x
  3. Step 3: Cross multiply
    269,561.80x = 404,342.70 × 243,317.80
  4. Step 4: Simplify right side
    269,561.80x = 98,383,776,210.06
  5. Step 5: Solve for x
    x = 98,383,776,210.06/269,561.80
  6. Step 6: Final answer
    x = 364,976.70

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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.