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Finding the Fourth Proportional to 339,025.80, 508,214.70 and 125,736.60

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Solution

The fourth proportional to 339,025.80, 508,214.70 and 125,736.60 is: 188,484.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,025.80 : 508,214.70 = 125,736.60 : x
  2. Step 2: Convert to fraction form
    339,025.80/508,214.70 = 125,736.60/x
  3. Step 3: Cross multiply
    339,025.80x = 508,214.70 × 125,736.60
  4. Step 4: Simplify right side
    339,025.80x = 63,901,188,448.02
  5. Step 5: Solve for x
    x = 63,901,188,448.02/339,025.80
  6. Step 6: Final answer
    x = 188,484.74

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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.