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Finding the Fourth Proportional to 325,509.82, 488,264.72 and 88,858.80

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Solution

The fourth proportional to 325,509.82, 488,264.72 and 88,858.80 is: 133,288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,509.82 : 488,264.72 = 88,858.80 : x
  2. Step 2: Convert to fraction form
    325,509.82/488,264.72 = 88,858.80/x
  3. Step 3: Cross multiply
    325,509.82x = 488,264.72 × 88,858.80
  4. Step 4: Simplify right side
    325,509.82x = 43,386,617,101.54
  5. Step 5: Solve for x
    x = 43,386,617,101.54/325,509.82
  6. Step 6: Final answer
    x = 133,288.20

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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.