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Finding the Fourth Proportional to 325,097.79, 487,786.88 and 125,558.30

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Solution

The fourth proportional to 325,097.79, 487,786.88 and 125,558.30 is: 188,391.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,097.79 : 487,786.88 = 125,558.30 : x
  2. Step 2: Convert to fraction form
    325,097.79/487,786.88 = 125,558.30/x
  3. Step 3: Cross multiply
    325,097.79x = 487,786.88 × 125,558.30
  4. Step 4: Simplify right side
    325,097.79x = 61,245,692,242.20
  5. Step 5: Solve for x
    x = 61,245,692,242.20/325,097.79
  6. Step 6: Final answer
    x = 188,391.60

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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.