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Finding the Fourth Proportional to 436,218.93, 654,327.41 and 136,722.33

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Solution

The fourth proportional to 436,218.93, 654,327.41 and 136,722.33 is: 205,083.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,218.93 : 654,327.41 = 136,722.33 : x
  2. Step 2: Convert to fraction form
    436,218.93/654,327.41 = 136,722.33/x
  3. Step 3: Cross multiply
    436,218.93x = 654,327.41 × 136,722.33
  4. Step 4: Simplify right side
    436,218.93x = 89,461,167,394.45
  5. Step 5: Solve for x
    x = 89,461,167,394.45/436,218.93
  6. Step 6: Final answer
    x = 205,083.18

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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.