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Finding the Fourth Proportional to 177,615, 266,554.02 and 84,121.02

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Solution

The fourth proportional to 177,615, 266,554.02 and 84,121.02 is: 126,243.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,615 : 266,554.02 = 84,121.02 : x
  2. Step 2: Convert to fraction form
    177,615/266,554.02 = 84,121.02/x
  3. Step 3: Cross multiply
    177,615x = 266,554.02 × 84,121.02
  4. Step 4: Simplify right side
    177,615x = 22,422,796,047.50
  5. Step 5: Solve for x
    x = 22,422,796,047.50/177,615
  6. Step 6: Final answer
    x = 126,243.82

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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.