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Finding the Fourth Proportional to 339,648.86, 468,720.24 and 186,701.20

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Solution

The fourth proportional to 339,648.86, 468,720.24 and 186,701.20 is: 257,650.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,648.86 : 468,720.24 = 186,701.20 : x
  2. Step 2: Convert to fraction form
    339,648.86/468,720.24 = 186,701.20/x
  3. Step 3: Cross multiply
    339,648.86x = 468,720.24 × 186,701.20
  4. Step 4: Simplify right side
    339,648.86x = 87,510,630,100.49
  5. Step 5: Solve for x
    x = 87,510,630,100.49/339,648.86
  6. Step 6: Final answer
    x = 257,650.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.