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Finding the Fourth Proportional to 152,222.87, 228,084.96 and 81,069.96

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Solution

The fourth proportional to 152,222.87, 228,084.96 and 81,069.96 is: 121,472.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,222.87 : 228,084.96 = 81,069.96 : x
  2. Step 2: Convert to fraction form
    152,222.87/228,084.96 = 81,069.96/x
  3. Step 3: Cross multiply
    152,222.87x = 228,084.96 × 81,069.96
  4. Step 4: Simplify right side
    152,222.87x = 18,490,839,743.13
  5. Step 5: Solve for x
    x = 18,490,839,743.13/152,222.87
  6. Step 6: Final answer
    x = 121,472.15

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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.