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Finding the Fourth Proportional to 368,522.10, 552,783.15 and 131,883.30

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Solution

The fourth proportional to 368,522.10, 552,783.15 and 131,883.30 is: 197,824.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,522.10 : 552,783.15 = 131,883.30 : x
  2. Step 2: Convert to fraction form
    368,522.10/552,783.15 = 131,883.30/x
  3. Step 3: Cross multiply
    368,522.10x = 552,783.15 × 131,883.30
  4. Step 4: Simplify right side
    368,522.10x = 72,902,866,006.40
  5. Step 5: Solve for x
    x = 72,902,866,006.40/368,522.10
  6. Step 6: Final answer
    x = 197,824.95

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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.