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Finding the Fourth Proportional to 293,725.50, 405,342.27 and 159,589.50

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Solution

The fourth proportional to 293,725.50, 405,342.27 and 159,589.50 is: 220,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,725.50 : 405,342.27 = 159,589.50 : x
  2. Step 2: Convert to fraction form
    293,725.50/405,342.27 = 159,589.50/x
  3. Step 3: Cross multiply
    293,725.50x = 405,342.27 × 159,589.50
  4. Step 4: Simplify right side
    293,725.50x = 64,688,370,198.17
  5. Step 5: Solve for x
    x = 64,688,370,198.17/293,725.50
  6. Step 6: Final answer
    x = 220,234.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.