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Finding the Fourth Proportional to 177,855.56, 266,858.22 and 77,964.20

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Solution

The fourth proportional to 177,855.56, 266,858.22 and 77,964.20 is: 116,979.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,855.56 : 266,858.22 = 77,964.20 : x
  2. Step 2: Convert to fraction form
    177,855.56/266,858.22 = 77,964.20/x
  3. Step 3: Cross multiply
    177,855.56x = 266,858.22 × 77,964.20
  4. Step 4: Simplify right side
    177,855.56x = 20,805,387,635.72
  5. Step 5: Solve for x
    x = 20,805,387,635.72/177,855.56
  6. Step 6: Final answer
    x = 116,979.12

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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.