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Finding the Fourth Proportional to 266,175.60, 398,725.80 and 166,028.40

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Solution

The fourth proportional to 266,175.60, 398,725.80 and 166,028.40 is: 248,707.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,175.60 : 398,725.80 = 166,028.40 : x
  2. Step 2: Convert to fraction form
    266,175.60/398,725.80 = 166,028.40/x
  3. Step 3: Cross multiply
    266,175.60x = 398,725.80 × 166,028.40
  4. Step 4: Simplify right side
    266,175.60x = 66,199,806,612.72
  5. Step 5: Solve for x
    x = 66,199,806,612.72/266,175.60
  6. Step 6: Final answer
    x = 248,707.27

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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.