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Finding the Fourth Proportional to 152,129.92, 228,097.68 and 73,086.88

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Solution

The fourth proportional to 152,129.92, 228,097.68 and 73,086.88 is: 109,583.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,129.92 : 228,097.68 = 73,086.88 : x
  2. Step 2: Convert to fraction form
    152,129.92/228,097.68 = 73,086.88/x
  3. Step 3: Cross multiply
    152,129.92x = 228,097.68 × 73,086.88
  4. Step 4: Simplify right side
    152,129.92x = 16,670,947,766.44
  5. Step 5: Solve for x
    x = 16,670,947,766.44/152,129.92
  6. Step 6: Final answer
    x = 109,583.62

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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.