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Finding the Fourth Proportional to 238,635.86, 329,367.60 and 151,364.50

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Solution

The fourth proportional to 238,635.86, 329,367.60 and 151,364.50 is: 208,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,635.86 : 329,367.60 = 151,364.50 : x
  2. Step 2: Convert to fraction form
    238,635.86/329,367.60 = 151,364.50/x
  3. Step 3: Cross multiply
    238,635.86x = 329,367.60 × 151,364.50
  4. Step 4: Simplify right side
    238,635.86x = 49,854,561,266.78
  5. Step 5: Solve for x
    x = 49,854,561,266.78/238,635.86
  6. Step 6: Final answer
    x = 208,914.80

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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.