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Finding the Fourth Proportional to 177,568.40, 266,125.80 and 72,268.40

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Solution

The fourth proportional to 177,568.40, 266,125.80 and 72,268.40 is: 108,310.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,568.40 : 266,125.80 = 72,268.40 : x
  2. Step 2: Convert to fraction form
    177,568.40/266,125.80 = 72,268.40/x
  3. Step 3: Cross multiply
    177,568.40x = 266,125.80 × 72,268.40
  4. Step 4: Simplify right side
    177,568.40x = 19,232,485,764.72
  5. Step 5: Solve for x
    x = 19,232,485,764.72/177,568.40
  6. Step 6: Final answer
    x = 108,310.29

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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.