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Finding the Fourth Proportional to 260,513.82, 390,770.73 and 73,525.32

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Solution

The fourth proportional to 260,513.82, 390,770.73 and 73,525.32 is: 110,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,513.82 : 390,770.73 = 73,525.32 : x
  2. Step 2: Convert to fraction form
    260,513.82/390,770.73 = 73,525.32/x
  3. Step 3: Cross multiply
    260,513.82x = 390,770.73 × 73,525.32
  4. Step 4: Simplify right side
    260,513.82x = 28,731,542,969.88
  5. Step 5: Solve for x
    x = 28,731,542,969.88/260,513.82
  6. Step 6: Final answer
    x = 110,287.98

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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.