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Finding the Fourth Proportional to 77,254.80, 115,896.60 and 24,679.20

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Solution

The fourth proportional to 77,254.80, 115,896.60 and 24,679.20 is: 37,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,254.80 : 115,896.60 = 24,679.20 : x
  2. Step 2: Convert to fraction form
    77,254.80/115,896.60 = 24,679.20/x
  3. Step 3: Cross multiply
    77,254.80x = 115,896.60 × 24,679.20
  4. Step 4: Simplify right side
    77,254.80x = 2,860,235,370.72
  5. Step 5: Solve for x
    x = 2,860,235,370.72/77,254.80
  6. Step 6: Final answer
    x = 37,023.40

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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.