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Finding the Fourth Proportional to 325,709.68, 488,565 and 89,054.44

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Solution

The fourth proportional to 325,709.68, 488,565 and 89,054.44 is: 133,581.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,709.68 : 488,565 = 89,054.44 : x
  2. Step 2: Convert to fraction form
    325,709.68/488,565 = 89,054.44/x
  3. Step 3: Cross multiply
    325,709.68x = 488,565 × 89,054.44
  4. Step 4: Simplify right side
    325,709.68x = 43,508,882,478.60
  5. Step 5: Solve for x
    x = 43,508,882,478.60/325,709.68
  6. Step 6: Final answer
    x = 133,581.79

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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.