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Finding the Fourth Proportional to 266,410.42, 399,615.63 and 108,651.22

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Solution

The fourth proportional to 266,410.42, 399,615.63 and 108,651.22 is: 162,976.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,410.42 : 399,615.63 = 108,651.22 : x
  2. Step 2: Convert to fraction form
    266,410.42/399,615.63 = 108,651.22/x
  3. Step 3: Cross multiply
    266,410.42x = 399,615.63 × 108,651.22
  4. Step 4: Simplify right side
    266,410.42x = 43,418,725,730.57
  5. Step 5: Solve for x
    x = 43,418,725,730.57/266,410.42
  6. Step 6: Final answer
    x = 162,976.83

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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.