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Finding the Fourth Proportional to 260,836.66, 391,270.35 and 73,832.50

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Solution

The fourth proportional to 260,836.66, 391,270.35 and 73,832.50 is: 110,753.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,836.66 : 391,270.35 = 73,832.50 : x
  2. Step 2: Convert to fraction form
    260,836.66/391,270.35 = 73,832.50/x
  3. Step 3: Cross multiply
    260,836.66x = 391,270.35 × 73,832.50
  4. Step 4: Simplify right side
    260,836.66x = 28,888,468,116.38
  5. Step 5: Solve for x
    x = 28,888,468,116.38/260,836.66
  6. Step 6: Final answer
    x = 110,753.10

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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.