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Finding the Fourth Proportional to 206,666.70, 309,927.15 and 73,551.30

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Solution

The fourth proportional to 206,666.70, 309,927.15 and 73,551.30 is: 110,301.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,666.70 : 309,927.15 = 73,551.30 : x
  2. Step 2: Convert to fraction form
    206,666.70/309,927.15 = 73,551.30/x
  3. Step 3: Cross multiply
    206,666.70x = 309,927.15 × 73,551.30
  4. Step 4: Simplify right side
    206,666.70x = 22,795,544,787.80
  5. Step 5: Solve for x
    x = 22,795,544,787.80/206,666.70
  6. Step 6: Final answer
    x = 110,301.01

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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.