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Finding the Fourth Proportional to 325,442.72, 488,237.72 and 175,679.80

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Solution

The fourth proportional to 325,442.72, 488,237.72 and 175,679.80 is: 263,559.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,442.72 : 488,237.72 = 175,679.80 : x
  2. Step 2: Convert to fraction form
    325,442.72/488,237.72 = 175,679.80/x
  3. Step 3: Cross multiply
    325,442.72x = 488,237.72 × 175,679.80
  4. Step 4: Simplify right side
    325,442.72x = 85,773,505,002.06
  5. Step 5: Solve for x
    x = 85,773,505,002.06/325,442.72
  6. Step 6: Final answer
    x = 263,559.45

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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.