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Finding the Fourth Proportional to 325,745.49, 488,611.28 and 89,088.17

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Solution

The fourth proportional to 325,745.49, 488,611.28 and 89,088.17 is: 133,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,745.49 : 488,611.28 = 89,088.17 : x
  2. Step 2: Convert to fraction form
    325,745.49/488,611.28 = 89,088.17/x
  3. Step 3: Cross multiply
    325,745.49x = 488,611.28 × 89,088.17
  4. Step 4: Simplify right side
    325,745.49x = 43,529,484,776.56
  5. Step 5: Solve for x
    x = 43,529,484,776.56/325,745.49
  6. Step 6: Final answer
    x = 133,630.35

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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.