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Finding the Fourth Proportional to 450,866.67, 676,403.68 and 135,329.55

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Solution

The fourth proportional to 450,866.67, 676,403.68 and 135,329.55 is: 203,025.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,866.67 : 676,403.68 = 135,329.55 : x
  2. Step 2: Convert to fraction form
    450,866.67/676,403.68 = 135,329.55/x
  3. Step 3: Cross multiply
    450,866.67x = 676,403.68 × 135,329.55
  4. Step 4: Simplify right side
    450,866.67x = 91,537,405,632.74
  5. Step 5: Solve for x
    x = 91,537,405,632.74/450,866.67
  6. Step 6: Final answer
    x = 203,025.44

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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.