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Finding the Fourth Proportional to 263,495.53, 395,254.23 and 76,507.03

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Solution

The fourth proportional to 263,495.53, 395,254.23 and 76,507.03 is: 114,763.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,495.53 : 395,254.23 = 76,507.03 : x
  2. Step 2: Convert to fraction form
    263,495.53/395,254.23 = 76,507.03/x
  3. Step 3: Cross multiply
    263,495.53x = 395,254.23 × 76,507.03
  4. Step 4: Simplify right side
    263,495.53x = 30,239,727,869.76
  5. Step 5: Solve for x
    x = 30,239,727,869.76/263,495.53
  6. Step 6: Final answer
    x = 114,763.72

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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.