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Finding the Fourth Proportional to 253,165.20, 379,415.61 and 186,292.20

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Solution

The fourth proportional to 253,165.20, 379,415.61 and 186,292.20 is: 279,193.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,165.20 : 379,415.61 = 186,292.20 : x
  2. Step 2: Convert to fraction form
    253,165.20/379,415.61 = 186,292.20/x
  3. Step 3: Cross multiply
    253,165.20x = 379,415.61 × 186,292.20
  4. Step 4: Simplify right side
    253,165.20x = 70,682,168,701.24
  5. Step 5: Solve for x
    x = 70,682,168,701.24/253,165.20
  6. Step 6: Final answer
    x = 279,193.86

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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.