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Finding the Fourth Proportional to 325,077.85, 487,173.87 and 156,585.90

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Solution

The fourth proportional to 325,077.85, 487,173.87 and 156,585.90 is: 234,665.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,077.85 : 487,173.87 = 156,585.90 : x
  2. Step 2: Convert to fraction form
    325,077.85/487,173.87 = 156,585.90/x
  3. Step 3: Cross multiply
    325,077.85x = 487,173.87 × 156,585.90
  4. Step 4: Simplify right side
    325,077.85x = 76,284,558,890.43
  5. Step 5: Solve for x
    x = 76,284,558,890.43/325,077.85
  6. Step 6: Final answer
    x = 234,665.51

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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.