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Finding the Fourth Proportional to 366,918.40, 550,318.50 and 100,617.08

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Solution

The fourth proportional to 366,918.40, 550,318.50 and 100,617.08 is: 150,909.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,918.40 : 550,318.50 = 100,617.08 : x
  2. Step 2: Convert to fraction form
    366,918.40/550,318.50 = 100,617.08/x
  3. Step 3: Cross multiply
    366,918.40x = 550,318.50 × 100,617.08
  4. Step 4: Simplify right side
    366,918.40x = 55,371,440,539.98
  5. Step 5: Solve for x
    x = 55,371,440,539.98/366,918.40
  6. Step 6: Final answer
    x = 150,909.41

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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.