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Finding the Fourth Proportional to 103,592.91, 155,055.20 and 53,604.21

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Solution

The fourth proportional to 103,592.91, 155,055.20 and 53,604.21 is: 80,233.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,592.91 : 155,055.20 = 53,604.21 : x
  2. Step 2: Convert to fraction form
    103,592.91/155,055.20 = 53,604.21/x
  3. Step 3: Cross multiply
    103,592.91x = 155,055.20 × 53,604.21
  4. Step 4: Simplify right side
    103,592.91x = 8,311,611,234.37
  5. Step 5: Solve for x
    x = 8,311,611,234.37/103,592.91
  6. Step 6: Final answer
    x = 80,233.40

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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.