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Finding the Fourth Proportional to 325,868.58, 488,836.62 and 89,211.24

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Solution

The fourth proportional to 325,868.58, 488,836.62 and 89,211.24 is: 133,826.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,868.58 : 488,836.62 = 89,211.24 : x
  2. Step 2: Convert to fraction form
    325,868.58/488,836.62 = 89,211.24/x
  3. Step 3: Cross multiply
    325,868.58x = 488,836.62 × 89,211.24
  4. Step 4: Simplify right side
    325,868.58x = 43,609,721,027.61
  5. Step 5: Solve for x
    x = 43,609,721,027.61/325,868.58
  6. Step 6: Final answer
    x = 133,826.10

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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.