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Finding the Fourth Proportional to 325,871.58, 488,841.12 and 89,214.24

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Solution

The fourth proportional to 325,871.58, 488,841.12 and 89,214.24 is: 133,830.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,871.58 : 488,841.12 = 89,214.24 : x
  2. Step 2: Convert to fraction form
    325,871.58/488,841.12 = 89,214.24/x
  3. Step 3: Cross multiply
    325,871.58x = 488,841.12 × 89,214.24
  4. Step 4: Simplify right side
    325,871.58x = 43,611,589,001.55
  5. Step 5: Solve for x
    x = 43,611,589,001.55/325,871.58
  6. Step 6: Final answer
    x = 133,830.60

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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.