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Finding the Fourth Proportional to 175,871.89, 263,807.94 and 123,515.11

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Solution

The fourth proportional to 175,871.89, 263,807.94 and 123,515.11 is: 185,272.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,871.89 : 263,807.94 = 123,515.11 : x
  2. Step 2: Convert to fraction form
    175,871.89/263,807.94 = 123,515.11/x
  3. Step 3: Cross multiply
    175,871.89x = 263,807.94 × 123,515.11
  4. Step 4: Simplify right side
    175,871.89x = 32,584,266,727.97
  5. Step 5: Solve for x
    x = 32,584,266,727.97/175,871.89
  6. Step 6: Final answer
    x = 185,272.74

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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.