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Finding the Fourth Proportional to 264,739.05, 397,157.76 and 87,258.51

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Solution

The fourth proportional to 264,739.05, 397,157.76 and 87,258.51 is: 130,903.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,739.05 : 397,157.76 = 87,258.51 : x
  2. Step 2: Convert to fraction form
    264,739.05/397,157.76 = 87,258.51/x
  3. Step 3: Cross multiply
    264,739.05x = 397,157.76 × 87,258.51
  4. Step 4: Simplify right side
    264,739.05x = 34,655,394,372.54
  5. Step 5: Solve for x
    x = 34,655,394,372.54/264,739.05
  6. Step 6: Final answer
    x = 130,903.98

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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.