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Finding the Fourth Proportional to 325,172.12, 487,708.97 and 88,533.45

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Solution

The fourth proportional to 325,172.12, 487,708.97 and 88,533.45 is: 132,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,172.12 : 487,708.97 = 88,533.45 : x
  2. Step 2: Convert to fraction form
    325,172.12/487,708.97 = 88,533.45/x
  3. Step 3: Cross multiply
    325,172.12x = 487,708.97 × 88,533.45
  4. Step 4: Simplify right side
    325,172.12x = 43,178,557,267.38
  5. Step 5: Solve for x
    x = 43,178,557,267.38/325,172.12
  6. Step 6: Final answer
    x = 132,786.78

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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.