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Finding the Fourth Proportional to 436,403.63, 654,606.23 and 136,907.82

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Solution

The fourth proportional to 436,403.63, 654,606.23 and 136,907.82 is: 205,361.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,403.63 : 654,606.23 = 136,907.82 : x
  2. Step 2: Convert to fraction form
    436,403.63/654,606.23 = 136,907.82/x
  3. Step 3: Cross multiply
    436,403.63x = 654,606.23 × 136,907.82
  4. Step 4: Simplify right side
    436,403.63x = 89,620,711,223.18
  5. Step 5: Solve for x
    x = 89,620,711,223.18/436,403.63
  6. Step 6: Final answer
    x = 205,361.97

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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.