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Finding the Fourth Proportional to 325,645.88, 488,453.67 and 88,987.86

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Solution

The fourth proportional to 325,645.88, 488,453.67 and 88,987.86 is: 133,477.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,645.88 : 488,453.67 = 88,987.86 : x
  2. Step 2: Convert to fraction form
    325,645.88/488,453.67 = 88,987.86/x
  3. Step 3: Cross multiply
    325,645.88x = 488,453.67 × 88,987.86
  4. Step 4: Simplify right side
    325,645.88x = 43,466,446,802.45
  5. Step 5: Solve for x
    x = 43,466,446,802.45/325,645.88
  6. Step 6: Final answer
    x = 133,477.65

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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.