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Finding the Fourth Proportional to 325,938.21, 488,907.72 and 89,282.94

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Solution

The fourth proportional to 325,938.21, 488,907.72 and 89,282.94 is: 133,924.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,938.21 : 488,907.72 = 89,282.94 : x
  2. Step 2: Convert to fraction form
    325,938.21/488,907.72 = 89,282.94/x
  3. Step 3: Cross multiply
    325,938.21x = 488,907.72 × 89,282.94
  4. Step 4: Simplify right side
    325,938.21x = 43,651,118,630.30
  5. Step 5: Solve for x
    x = 43,651,118,630.30/325,938.21
  6. Step 6: Final answer
    x = 133,924.52

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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.