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Finding the Fourth Proportional to 325,329.69, 487,980.18 and 88,672.36

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Solution

The fourth proportional to 325,329.69, 487,980.18 and 88,672.36 is: 133,004.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,329.69 : 487,980.18 = 88,672.36 : x
  2. Step 2: Convert to fraction form
    325,329.69/487,980.18 = 88,672.36/x
  3. Step 3: Cross multiply
    325,329.69x = 487,980.18 × 88,672.36
  4. Step 4: Simplify right side
    325,329.69x = 43,270,354,193.82
  5. Step 5: Solve for x
    x = 43,270,354,193.82/325,329.69
  6. Step 6: Final answer
    x = 133,004.63

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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.