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Finding the Fourth Proportional to 235,728, 353,602.98 and 67,259.88

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Solution

The fourth proportional to 235,728, 353,602.98 and 67,259.88 is: 100,892.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,728 : 353,602.98 = 67,259.88 : x
  2. Step 2: Convert to fraction form
    235,728/353,602.98 = 67,259.88/x
  3. Step 3: Cross multiply
    235,728x = 353,602.98 × 67,259.88
  4. Step 4: Simplify right side
    235,728x = 23,783,294,002.44
  5. Step 5: Solve for x
    x = 23,783,294,002.44/235,728
  6. Step 6: Final answer
    x = 100,892.95

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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.