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Finding the Fourth Proportional to 253,162.20, 379,411.11 and 186,289.20

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Solution

The fourth proportional to 253,162.20, 379,411.11 and 186,289.20 is: 279,189.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,162.20 : 379,411.11 = 186,289.20 : x
  2. Step 2: Convert to fraction form
    253,162.20/379,411.11 = 186,289.20/x
  3. Step 3: Cross multiply
    253,162.20x = 379,411.11 × 186,289.20
  4. Step 4: Simplify right side
    253,162.20x = 70,680,192,153.01
  5. Step 5: Solve for x
    x = 70,680,192,153.01/253,162.20
  6. Step 6: Final answer
    x = 279,189.36

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1.5x scale

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.