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Finding the Fourth Proportional to 174,700.80, 261,662.40 and 91,497.60

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Solution

The fourth proportional to 174,700.80, 261,662.40 and 91,497.60 is: 137,042.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,700.80 : 261,662.40 = 91,497.60 : x
  2. Step 2: Convert to fraction form
    174,700.80/261,662.40 = 91,497.60/x
  3. Step 3: Cross multiply
    174,700.80x = 261,662.40 × 91,497.60
  4. Step 4: Simplify right side
    174,700.80x = 23,941,481,610.24
  5. Step 5: Solve for x
    x = 23,941,481,610.24/174,700.80
  6. Step 6: Final answer
    x = 137,042.77

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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.