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Finding the Fourth Proportional to 325,506.64, 488,334.48 and 125,828.68

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Solution

The fourth proportional to 325,506.64, 488,334.48 and 125,828.68 is: 188,771.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,506.64 : 488,334.48 = 125,828.68 : x
  2. Step 2: Convert to fraction form
    325,506.64/488,334.48 = 125,828.68/x
  3. Step 3: Cross multiply
    325,506.64x = 488,334.48 × 125,828.68
  4. Step 4: Simplify right side
    325,506.64x = 61,446,483,016.89
  5. Step 5: Solve for x
    x = 61,446,483,016.89/325,506.64
  6. Step 6: Final answer
    x = 188,771.83

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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.